990429512 has 16 divisors (see below), whose sum is σ = 1859307900. Its totient is φ = 494614080.

The previous prime is 990429493. The next prime is 990429521. The reversal of 990429512 is 215924099.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 990109156 + 320356 = 31466^2 + 566^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 990429512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68039 + ... + 81302.

Almost surely, 2^990429512 is an apocalyptic number.

It is an amenable number.

990429512 is a deficient number, since it is larger than the sum of its proper divisors (868878388).

990429512 is a wasteful number, since it uses less digits than its factorization.

990429512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150176 (or 150172 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 990429512 is about 31471.0900986922. The cubic root of 990429512 is about 996.7996057366.

The spelling of 990429512 in words is "nine hundred ninety million, four hundred twenty-nine thousand, five hundred twelve".