57038140 has 24 divisors (see below), whose sum is σ = 123645312. Its totient is φ = 22079040.

The previous prime is 57038131. The next prime is 57038141. The reversal of 57038140 is 4183075.

It is a junction number, because it is equal to n+sod(n) for n = 57038099 and 57038108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57038141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45379 + ... + 46618.

It is an arithmetic number, because the mean of its divisors is an integer number (5151888).

Almost surely, 2^57038140 is an apocalyptic number.

It is an amenable number.

57038140 is an abundant number, since it is smaller than the sum of its proper divisors (66607172).

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

57038140 is a wasteful number, since it uses less digits than its factorization.

57038140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92037 (or 92035 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 57038140 is about 7552.3598960855. The cubic root of 57038140 is about 384.9359313189.

The spelling of 57038140 in words is "fifty-seven million, thirty-eight thousand, one hundred forty".