57138038 has 8 divisors (see below), whose sum is σ = 85777032. Its totient is φ = 28545696.

The previous prime is 57138007. The next prime is 57138043. The reversal of 57138038 is 83083175.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 57137989 and 57138007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8420 + ... + 13607.

It is an arithmetic number, because the mean of its divisors is an integer number (10722129).

Almost surely, 2^57138038 is an apocalyptic number.

57138038 is a deficient number, since it is larger than the sum of its proper divisors (28638994).

57138038 is a wasteful number, since it uses less digits than its factorization.

57138038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23326.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 57138038 is about 7558.9706971254. The cubic root of 57138038 is about 385.1605289976.

The spelling of 57138038 in words is "fifty-seven million, one hundred thirty-eight thousand, thirty-eight".