507389920 has 24 divisors (see below), whose sum is σ = 1198709064. Its totient is φ = 202955904.

The previous prime is 507389891. The next prime is 507389929. The reversal of 507389920 is 29983705.

It is a happy number.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (507389929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1585434 + ... + 1585753.

It is an arithmetic number, because the mean of its divisors is an integer number (49946211).

Almost surely, 2^507389920 is an apocalyptic number.

It is an amenable number.

507389920 is an abundant number, since it is smaller than the sum of its proper divisors (691319144).

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

507389920 is a wasteful number, since it uses less digits than its factorization.

507389920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3171202 (or 3171194 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 507389920 is about 22525.3173118604. The cubic root of 507389920 is about 797.5916738986.

The spelling of 507389920 in words is "five hundred seven million, three hundred eighty-nine thousand, nine hundred twenty".