57042270 has 24 divisors (see below), whose sum is σ = 148310136. Its totient is φ = 15211248.

The previous prime is 57042269. The next prime is 57042299. The reversal of 57042270 is 7224075.

57042270 is a `hidden beast` number, since 570 + 4 + 22 + 70 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 316812 + ... + 316991.

It is an arithmetic number, because the mean of its divisors is an integer number (6179589).

Almost surely, 2^57042270 is an apocalyptic number.

57042270 is an abundant number, since it is smaller than the sum of its proper divisors (91267866).

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

57042270 is a wasteful number, since it uses less digits than its factorization.

57042270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633816 (or 633813 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 57042270 is about 7552.6333156059. The cubic root of 57042270 is about 384.9452218686.

The spelling of 57042270 in words is "fifty-seven million, forty-two thousand, two hundred seventy".