557732740 has 24 divisors (see below), whose sum is σ = 1184402520. Its totient is φ = 220585728.

The previous prime is 557732737. The next prime is 557732741. The reversal of 557732740 is 47237755.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 37527876 + 520204864 = 6126^2 + 22808^2 .

It is a super-2 number, since 2×557732740² = 622131618535815200, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 557732693 and 557732702.

It is not an unprimeable number, because it can be changed into a prime (557732741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154887 + ... + 158446.

It is an arithmetic number, because the mean of its divisors is an integer number (49350105).

Almost surely, 2^557732740 is an apocalyptic number.

It is an amenable number.

557732740 is an abundant number, since it is smaller than the sum of its proper divisors (626669780).

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

557732740 is a wasteful number, since it uses less digits than its factorization.

557732740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313431 (or 313429 counting only the distinct ones).

The product of its (nonzero) digits is 205800, while the sum is 40.

The square root of 557732740 is about 23616.3659355118. The cubic root of 557732740 is about 823.1431713822.

The spelling of 557732740 in words is "five hundred fifty-seven million, seven hundred thirty-two thousand, seven hundred forty".