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244540 = 22512227
BaseRepresentation
bin111011101100111100
3110102110001
4323230330
530311130
65124044
72035642
oct735474
9412401
10244540
111577aa
12b9624
13873ca
1465192
154c6ca
hex3bb3c

244540 has 12 divisors (see below), whose sum is σ = 513576. Its totient is φ = 97808.

The previous prime is 244529. The next prime is 244547. The reversal of 244540 is 45442.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6094 + ... + 6133.

It is an arithmetic number, because the mean of its divisors is an integer number (42798).

2244540 is an apocalyptic number.

244540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244540 is an abundant number, since it is smaller than the sum of its proper divisors (269036).

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

244540 is a wasteful number, since it uses less digits than its factorization.

244540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12236 (or 12234 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 244540 is about 494.5098583446. The cubic root of 244540 is about 62.5340614337.

Adding to 244540 its reverse (45442), we get a palindrome (289982).

It can be divided in two parts, 2445 and 40, that added together give a triangular number (2485 = T70).

The spelling of 244540 in words is "two hundred forty-four thousand, five hundred forty".