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4397140 = 2251122379
BaseRepresentation
bin10000110001100001010100
322021101202001
4100301201110
52111202030
6234125044
752242436
oct20614124
98241661
104397140
112533700
121580784
13bac577
14826656
155bccca
hex431854

4397140 has 72 divisors (see below), whose sum is σ = 10725120. Its totient is φ = 1510080.

The previous prime is 4397131. The next prime is 4397147. The reversal of 4397140 is 417934.

It is a junction number, because it is equal to n+sod(n) for n = 4397099 and 4397108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4397147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55621 + ... + 55699.

It is an arithmetic number, because the mean of its divisors is an integer number (148960).

Almost surely, 24397140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4397140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5362560).

4397140 is an abundant number, since it is smaller than the sum of its proper divisors (6327980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4397140 is a wasteful number, since it uses less digits than its factorization.

4397140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 4397140 is about 2096.9358597725. The cubic root of 4397140 is about 163.8287425031.

The spelling of 4397140 in words is "four million, three hundred ninety-seven thousand, one hundred forty".

Divisors: 1 2 4 5 10 11 20 22 23 44 46 55 79 92 110 115 121 158 220 230 242 253 316 395 460 484 506 605 790 869 1012 1210 1265 1580 1738 1817 2420 2530 2783 3476 3634 4345 5060 5566 7268 8690 9085 9559 11132 13915 17380 18170 19118 19987 27830 36340 38236 39974 47795 55660 79948 95590 99935 191180 199870 219857 399740 439714 879428 1099285 2198570 4397140