57149190 has 72 divisors (see below), whose sum is σ = 172860480. Its totient is φ = 13061664.

The previous prime is 57149177. The next prime is 57149219. The reversal of 57149190 is 9194175.

It is a super-2 number, since 2×57149190² = 6532059835312200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2070 + ... + 10889.

It is an arithmetic number, because the mean of its divisors is an integer number (2400840).

Almost surely, 2^57149190 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57149190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86430240).

57149190 is an abundant number, since it is smaller than the sum of its proper divisors (115711290).

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

57149190 is a wasteful number, since it uses less digits than its factorization.

57149190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12986 (or 12976 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 57149190 is about 7559.7083277068. The cubic root of 57149190 is about 385.1855854571.

The spelling of 57149190 in words is "fifty-seven million, one hundred forty-nine thousand, one hundred ninety".