57138294 has 16 divisors (see below), whose sum is σ = 118217520. Its totient is φ = 18389280.

The previous prime is 57138287. The next prime is 57138349. The reversal of 57138294 is 49283175.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164017 + ... + 164364.

It is an arithmetic number, because the mean of its divisors is an integer number (7388595).

Almost surely, 2^57138294 is an apocalyptic number.

57138294 is an abundant number, since it is smaller than the sum of its proper divisors (61079226).

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

57138294 is a wasteful number, since it uses less digits than its factorization.

57138294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328415.

The product of its digits is 60480, while the sum is 39.

The square root of 57138294 is about 7558.9876306289. The cubic root of 57138294 is about 385.1611042183.

The spelling of 57138294 in words is "fifty-seven million, one hundred thirty-eight thousand, two hundred ninety-four".