557864244 has 288 divisors, whose sum is σ = 1805905920. Its totient is φ = 141647616.

The previous prime is 557864243. The next prime is 557864261. The reversal of 557864244 is 442468755.

It is a super-2 number, since 2×557864244² = 622425029467383072, 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 557864244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557864243) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8326299 + ... + 8326365.

Almost surely, 2^557864244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 557864244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (902952960).

557864244 is an abundant number, since it is smaller than the sum of its proper divisors (1248041676).

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

557864244 is a wasteful number, since it uses less digits than its factorization.

557864244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 182 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 45.

The square root of 557864244 is about 23619.1499423667. The cubic root of 557864244 is about 823.2078607369.

The spelling of 557864244 in words is "five hundred fifty-seven million, eight hundred sixty-four thousand, two hundred forty-four".