57662438 has 4 divisors (see below), whose sum is σ = 86493660. Its totient is φ = 28831218.

The previous prime is 57662399. The next prime is 57662447. The reversal of 57662438 is 83426675.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×57662438² = 6649913512207688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57662395 and 57662404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14415608 + ... + 14415611.

It is an arithmetic number, because the mean of its divisors is an integer number (21623415).

Almost surely, 2^57662438 is an apocalyptic number.

57662438 is a deficient number, since it is larger than the sum of its proper divisors (28831222).

57662438 is a wasteful number, since it uses less digits than its factorization.

57662438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28831221.

The product of its digits is 241920, while the sum is 41.

The square root of 57662438 is about 7593.5787346942. The cubic root of 57662438 is about 386.3352479559.

The spelling of 57662438 in words is "fifty-seven million, six hundred sixty-two thousand, four hundred thirty-eight".