557060240 has 80 divisors (see below), whose sum is σ = 1487315520. Its totient is φ = 191900160.

The previous prime is 557060239. The next prime is 557060243. The reversal of 557060240 is 42060755.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×557060240² = 620632221977715200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (557060243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62 + ... + 33378.

It is an arithmetic number, because the mean of its divisors is an integer number (18591444).

Almost surely, 2^557060240 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 557060240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (743657760).

557060240 is an abundant number, since it is smaller than the sum of its proper divisors (930255280).

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

557060240 is a wasteful number, since it uses less digits than its factorization.

557060240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33360 (or 33354 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 557060240 is about 23602.1236332666. The cubic root of 557060240 is about 822.8121965961.

The spelling of 557060240 in words is "five hundred fifty-seven million, sixty thousand, two hundred forty".