57138834 has 8 divisors (see below), whose sum is σ = 114277680. Its totient is φ = 19046276.

The previous prime is 57138827. The next prime is 57138839. The reversal of 57138834 is 43883175.

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

57138834 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 57138792 and 57138801.

It is not an unprimeable number, because it can be changed into a prime (57138839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4761564 + ... + 4761575.

It is an arithmetic number, because the mean of its divisors is an integer number (14284710).

Almost surely, 2^57138834 is an apocalyptic number.

57138834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

57138834 is a wasteful number, since it uses less digits than its factorization.

57138834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9523144.

The product of its digits is 80640, while the sum is 39.

The square root of 57138834 is about 7559.0233496134. The cubic root of 57138834 is about 385.1623175689.

The spelling of 57138834 in words is "fifty-seven million, one hundred thirty-eight thousand, eight hundred thirty-four".