57820194 has 12 divisors (see below), whose sum is σ = 125277126. Its totient is φ = 19273392.

The previous prime is 57820193. The next prime is 57820201. The reversal of 57820194 is 49102875.

It can be written as a sum of positive squares in only one way, i.e., 57380625 + 439569 = 7575^2 + 663^2 .

It is not an unprimeable number, because it can be changed into a prime (57820193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1606099 + ... + 1606134.

Almost surely, 2^57820194 is an apocalyptic number.

57820194 is an abundant number, since it is smaller than the sum of its proper divisors (67456932).

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

57820194 is a wasteful number, since it uses less digits than its factorization.

57820194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3212241 (or 3212238 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 57820194 is about 7603.9591003634. The cubic root of 57820194 is about 386.6872460642.

The spelling of 57820194 in words is "fifty-seven million, eight hundred twenty thousand, one hundred ninety-four".