507857990 has 16 divisors (see below), whose sum is σ = 927789552. Its totient is φ = 200110944.

The previous prime is 507857981. The next prime is 507858019. The reversal of 507857990 is 99758705.

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, 378329 + ... + 379668.

It is an arithmetic number, because the mean of its divisors is an integer number (57986847).

Almost surely, 2^507857990 is an apocalyptic number.

507857990 is a deficient number, since it is larger than the sum of its proper divisors (419931562).

507857990 is a wasteful number, since it uses less digits than its factorization.

507857990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758071.

The product of its (nonzero) digits is 793800, while the sum is 50.

The square root of 507857990 is about 22535.7047815239. The cubic root of 507857990 is about 797.8368594253.

The spelling of 507857990 in words is "five hundred seven million, eight hundred fifty-seven thousand, nine hundred ninety".