57198190 has 24 divisors (see below), whose sum is σ = 119767032. Its totient is φ = 19610640.

The previous prime is 57198181. The next prime is 57198191. The reversal of 57198190 is 9189175.

It is a happy number.

It is a super-2 number, since 2×57198190² = 6543265878552200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57198191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57876 + ... + 58855.

It is an arithmetic number, because the mean of its divisors is an integer number (4990293).

Almost surely, 2^57198190 is an apocalyptic number.

57198190 is an abundant number, since it is smaller than the sum of its proper divisors (62568842).

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

57198190 is a wasteful number, since it uses less digits than its factorization.

57198190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116752 (or 116745 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 40.

The square root of 57198190 is about 7562.9484990974. The cubic root of 57198190 is about 385.2956406886.

The spelling of 57198190 in words is "fifty-seven million, one hundred ninety-eight thousand, one hundred ninety".