500020992 has 72 divisors (see below), whose sum is σ = 1478670480. Its totient is φ = 166671360.

The previous prime is 500020981. The next prime is 500021009. The reversal of 500020992 is 299020005.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 29259 + ... + 43082.

It is an arithmetic number, because the mean of its divisors is an integer number (20537090).

Almost surely, 2^500020992 is an apocalyptic number.

It is an amenable number.

500020992 is an abundant number, since it is smaller than the sum of its proper divisors (978649488).

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

500020992 is an equidigital number, since it uses as much as digits as its factorization.

500020992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72366 (or 72346 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 500020992 is about 22361.1491654611. The cubic root of 500020992 is about 793.7116334030.

Adding to 500020992 its reverse (299020005), we get a palindrome (799040997).

The spelling of 500020992 in words is "five hundred million, twenty thousand, nine hundred ninety-two".