500120990 has 16 divisors (see below), whose sum is σ = 903426480. Its totient is φ = 199335360.

The previous prime is 500120989. The next prime is 500121023. The reversal of 500120990 is 99021005.

It is a happy number.

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, 86180 + ... + 91799.

It is an arithmetic number, because the mean of its divisors is an integer number (56464155).

Almost surely, 2^500120990 is an apocalyptic number.

500120990 is a deficient number, since it is larger than the sum of its proper divisors (403305490).

500120990 is a wasteful number, since it uses less digits than its factorization.

500120990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178267.

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 500120990 is about 22363.3850299994. The cubic root of 500120990 is about 793.7645407054.

Adding to 500120990 its reverse (99021005), we get a palindrome (599141995).

The spelling of 500120990 in words is "five hundred million, one hundred twenty thousand, nine hundred ninety".