57866490 has 48 divisors (see below), whose sum is σ = 164133216. Its totient is φ = 14028000.

The previous prime is 57866423. The next prime is 57866503. The reversal of 57866490 is 9466875.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 23 ways as a sum of consecutive naturals, for example, 28236 + ... + 30215.

It is an arithmetic number, because the mean of its divisors is an integer number (3419442).

Almost surely, 2^57866490 is an apocalyptic number.

57866490 is an abundant number, since it is smaller than the sum of its proper divisors (106266726).

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

57866490 is a wasteful number, since it uses less digits than its factorization.

57866490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58475 (or 58472 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 57866490 is about 7607.0026948858. The cubic root of 57866490 is about 386.7904239543.

The spelling of 57866490 in words is "fifty-seven million, eight hundred sixty-six thousand, four hundred ninety".