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4420431 = 32491159
BaseRepresentation
bin10000110111001101001111
322022120200200
4100313031033
52112423211
6234424543
752400361
oct20671517
98276620
104420431
11254a154
121592153
13bba052
14830d31
155c4b56
hex43734f

4420431 has 6 divisors (see below), whose sum is σ = 6385080. Its totient is φ = 2946948.

The previous prime is 4420421. The next prime is 4420453. The reversal of 4420431 is 1340244.

It is not a de Polignac number, because 4420431 - 210 = 4419407 is a prime.

It is a super-2 number, since 2×44204312 = 39080420451522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4420421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 245571 + ... + 245588.

It is an arithmetic number, because the mean of its divisors is an integer number (1064180).

Almost surely, 24420431 is an apocalyptic number.

4420431 is a deficient number, since it is larger than the sum of its proper divisors (1964649).

4420431 is a wasteful number, since it uses less digits than its factorization.

4420431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491165 (or 491162 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 4420431 is about 2102.4821045612. The cubic root of 4420431 is about 164.1174921501.

Adding to 4420431 its reverse (1340244), we get a palindrome (5760675).

It can be divided in two parts, 4420 and 431, that added together give a triangular number (4851 = T98).

The spelling of 4420431 in words is "four million, four hundred twenty thousand, four hundred thirty-one".

Divisors: 1 3 9 491159 1473477 4420431