557804238 has 16 divisors (see below), whose sum is σ = 1181232720. Its totient is φ = 174997376.

The previous prime is 557804197. The next prime is 557804249. The reversal of 557804238 is 832408755.

It is a super-3 number, since 3×557804238³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 557804238.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2734233 + ... + 2734436.

It is an arithmetic number, because the mean of its divisors is an integer number (73827045).

Almost surely, 2^557804238 is an apocalyptic number.

557804238 is an abundant number, since it is smaller than the sum of its proper divisors (623428482).

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

557804238 is a wasteful number, since it uses less digits than its factorization.

557804238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5468691.

The product of its (nonzero) digits is 268800, while the sum is 42.

The square root of 557804238 is about 23617.8796254024. The cubic root of 557804238 is about 823.1783438890.

The spelling of 557804238 in words is "five hundred fifty-seven million, eight hundred four thousand, two hundred thirty-eight".