557486940 has 24 divisors (see below), whose sum is σ = 1560963600. Its totient is φ = 148663168.

The previous prime is 557486921. The next prime is 557486971. The reversal of 557486940 is 49684755.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 557486940.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4645665 + ... + 4645784.

It is an arithmetic number, because the mean of its divisors is an integer number (65040150).

Almost surely, 2^557486940 is an apocalyptic number.

It is an amenable number.

557486940 is an abundant number, since it is smaller than the sum of its proper divisors (1003476660).

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

557486940 is a wasteful number, since it uses less digits than its factorization.

557486940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9291461 (or 9291459 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The square root of 557486940 is about 23611.1613437374. The cubic root of 557486940 is about 823.0222303488.

The spelling of 557486940 in words is "five hundred fifty-seven million, four hundred eighty-six thousand, nine hundred forty".