557340020 has 24 divisors (see below), whose sum is σ = 1184518944. Its totient is φ = 220249376.

The previous prime is 557340011. The next prime is 557340031. The reversal of 557340020 is 20043755.

It is a congruent number.

It is an unprimeable number.

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, 166214 + ... + 169533.

It is an arithmetic number, because the mean of its divisors is an integer number (49354956).

Almost surely, 2^557340020 is an apocalyptic number.

It is an amenable number.

557340020 is an abundant number, since it is smaller than the sum of its proper divisors (627178924).

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

557340020 is a wasteful number, since it uses less digits than its factorization.

557340020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335839 (or 335837 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 557340020 is about 23608.0498982868. The cubic root of 557340020 is about 822.9499242903.

Adding to 557340020 its reverse (20043755), we get a palindrome (577383775).

The spelling of 557340020 in words is "five hundred fifty-seven million, three hundred forty thousand, twenty".