478261500 has 48 divisors (see below), whose sum is σ = 1392701856. Its totient is φ = 127536000.

The previous prime is 478261499. The next prime is 478261571. The reversal of 478261500 is 5162874.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157921 + ... + 160920.

It is an arithmetic number, because the mean of its divisors is an integer number (29014622).

Almost surely, 2^478261500 is an apocalyptic number.

It is an amenable number.

478261500 is an abundant number, since it is smaller than the sum of its proper divisors (914440356).

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

478261500 is a wasteful number, since it uses less digits than its factorization.

478261500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318863 (or 318851 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 478261500 is about 21869.1906571780. The cubic root of 478261500 is about 782.0271072905.

The spelling of 478261500 in words is "four hundred seventy-eight million, two hundred sixty-one thousand, five hundred".