57851238 has 32 divisors (see below), whose sum is σ = 128960640. Its totient is φ = 17193600.

The previous prime is 57851231. The next prime is 57851251. The reversal of 57851238 is 83215875.

It is a junction number, because it is equal to n+sod(n) for n = 57851196 and 57851205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57851231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12988 + ... + 16863.

It is an arithmetic number, because the mean of its divisors is an integer number (4030020).

Almost surely, 2^57851238 is an apocalyptic number.

57851238 is an abundant number, since it is smaller than the sum of its proper divisors (71109402).

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

57851238 is a wasteful number, since it uses less digits than its factorization.

57851238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29892.

The product of its digits is 67200, while the sum is 39.

The square root of 57851238 is about 7606.0001314752. Note that the first 3 decimals coincide. The cubic root of 57851238 is about 386.7564385630.

The spelling of 57851238 in words is "fifty-seven million, eight hundred fifty-one thousand, two hundred thirty-eight".