504731920 has 80 divisors (see below), whose sum is σ = 1463084928. Its totient is φ = 157317120.

The previous prime is 504731897. The next prime is 504731923. The reversal of 504731920 is 29137405.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×504731920² = 509508622133772800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (504731923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34809 + ... + 47128.

Almost surely, 2^504731920 is an apocalyptic number.

It is an amenable number.

504731920 is an abundant number, since it is smaller than the sum of its proper divisors (958353008).

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

504731920 is a wasteful number, since it uses less digits than its factorization.

504731920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81968 (or 81962 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 504731920 is about 22466.2395607276. The cubic root of 504731920 is about 796.1964869356.

The spelling of 504731920 in words is "five hundred four million, seven hundred thirty-one thousand, nine hundred twenty".