57224238 has 16 divisors (see below), whose sum is σ = 120472320. Its totient is φ = 18070776.

The previous prime is 57224201. The next prime is 57224249. The reversal of 57224238 is 83242275.

57224238 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 2×57224238² = 6549226829361288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57224199 and 57224208.

It is a congruent number.

It is an unprimeable number.

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, 250870 + ... + 251097.

It is an arithmetic number, because the mean of its divisors is an integer number (7529520).

Almost surely, 2^57224238 is an apocalyptic number.

57224238 is an abundant number, since it is smaller than the sum of its proper divisors (63248082).

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

57224238 is a wasteful number, since it uses less digits than its factorization.

57224238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501991.

The product of its digits is 26880, while the sum is 33.

The square root of 57224238 is about 7564.6703827728. The cubic root of 57224238 is about 385.3541195656.

The spelling of 57224238 in words is "fifty-seven million, two hundred twenty-four thousand, two hundred thirty-eight".