57243736 has 32 divisors (see below), whose sum is σ = 120260880. Its totient is φ = 25315200.

The previous prime is 57243733. The next prime is 57243829. The reversal of 57243736 is 63734275.

57243736 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×57243736² = 6553690622475392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 57243695 and 57243704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57243733) 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 7 ways as a sum of consecutive naturals, for example, 5535 + ... + 12046.

Almost surely, 2^57243736 is an apocalyptic number.

It is an amenable number.

57243736 is an abundant number, since it is smaller than the sum of its proper divisors (63017144).

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

57243736 is a wasteful number, since it uses less digits than its factorization.

57243736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17635 (or 17631 counting only the distinct ones).

The product of its digits is 105840, while the sum is 37.

The square root of 57243736 is about 7565.9590271161. The cubic root of 57243736 is about 385.3978817992.

The spelling of 57243736 in words is "fifty-seven million, two hundred forty-three thousand, seven hundred thirty-six".