507638780 has 24 divisors (see below), whose sum is σ = 1162954800. Its totient is φ = 184595840.

The previous prime is 507638771. The next prime is 507638797. The reversal of 507638780 is 87836705.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1153505 + ... + 1153944.

It is an arithmetic number, because the mean of its divisors is an integer number (48456450).

Almost surely, 2^507638780 is an apocalyptic number.

It is an amenable number.

507638780 is an abundant number, since it is smaller than the sum of its proper divisors (655316020).

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

507638780 is a wasteful number, since it uses less digits than its factorization.

507638780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307469 (or 2307467 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 507638780 is about 22530.8406412189. The cubic root of 507638780 is about 797.7220510924.

The spelling of 507638780 in words is "five hundred seven million, six hundred thirty-eight thousand, seven hundred eighty".