557918380 has 48 divisors (see below), whose sum is σ = 1193522400. Its totient is φ = 219022848.

The previous prime is 557918371. The next prime is 557918419. The reversal of 557918380 is 83819755.

It is a super-2 number, since 2×557918380² = 622545837483648800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 557918380.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 467064 + ... + 468256.

It is an arithmetic number, because the mean of its divisors is an integer number (24865050).

Almost surely, 2^557918380 is an apocalyptic number.

It is an amenable number.

557918380 is an abundant number, since it is smaller than the sum of its proper divisors (635604020).

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

557918380 is a wasteful number, since it uses less digits than its factorization.

557918380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618 (or 1616 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 46.

The square root of 557918380 is about 23620.2959337939. The cubic root of 557918380 is about 823.2344883258.

The spelling of 557918380 in words is "five hundred fifty-seven million, nine hundred eighteen thousand, three hundred eighty".