557118940 has 48 divisors (see below), whose sum is σ = 1339031232. Its totient is φ = 190734336.

The previous prime is 557118911. The next prime is 557118943. The reversal of 557118940 is 49811755.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 557118893 and 557118902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557118943) 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, 109084 + ... + 114076.

It is an arithmetic number, because the mean of its divisors is an integer number (27896484).

Almost surely, 2^557118940 is an apocalyptic number.

It is an amenable number.

557118940 is an abundant number, since it is smaller than the sum of its proper divisors (781912292).

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

557118940 is a wasteful number, since it uses less digits than its factorization.

557118940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5806 (or 5804 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 40.

The square root of 557118940 is about 23603.3671326783. The cubic root of 557118940 is about 822.8410967497.

The spelling of 557118940 in words is "five hundred fifty-seven million, one hundred eighteen thousand, nine hundred forty".