504008720 has 20 divisors (see below), whose sum is σ = 1171820460. Its totient is φ = 201603456.

The previous prime is 504008711. The next prime is 504008731. The reversal of 504008720 is 27800405.

It can be written as a sum of positive squares in 2 ways, for example, as 402724624 + 101284096 = 20068^2 + 10064^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 504008720.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3149975 + ... + 3150134.

It is an arithmetic number, because the mean of its divisors is an integer number (58591023).

Almost surely, 2^504008720 is an apocalyptic number.

It is an amenable number.

504008720 is an abundant number, since it is smaller than the sum of its proper divisors (667811740).

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

504008720 is a wasteful number, since it uses less digits than its factorization.

504008720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6300122 (or 6300116 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 504008720 is about 22450.1385296394. The cubic root of 504008720 is about 795.8160311532.

The spelling of 504008720 in words is "five hundred four million, eight thousand, seven hundred twenty".