57246290 has 32 divisors (see below), whose sum is σ = 107110080. Its totient is φ = 22002624.

The previous prime is 57246283. The next prime is 57246331. The reversal of 57246290 is 9264275.

It is a self number, because there is not a number n which added to its sum of digits gives 57246290.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88709 + ... + 89351.

It is an arithmetic number, because the mean of its divisors is an integer number (3347190).

Almost surely, 2^57246290 is an apocalyptic number.

57246290 is a deficient number, since it is larger than the sum of its proper divisors (49863790).

57246290 is a wasteful number, since it uses less digits than its factorization.

57246290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 57246290 is about 7566.1278075380. The cubic root of 57246290 is about 385.4036133815.

The spelling of 57246290 in words is "fifty-seven million, two hundred forty-six thousand, two hundred ninety".