990090324 has 48 divisors (see below), whose sum is σ = 2569450240. Its totient is φ = 329702400.

The previous prime is 990090229. The next prime is 990090371. The reversal of 990090324 is 423090099.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120549 + ... + 128499.

Almost surely, 2^990090324 is an apocalyptic number.

It is an amenable number.

990090324 is an abundant number, since it is smaller than the sum of its proper divisors (1579359916).

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

990090324 is a wasteful number, since it uses less digits than its factorization.

990090324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9117 (or 9109 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 990090324 is about 31465.7007549490. The cubic root of 990090324 is about 996.6858028985.

The spelling of 990090324 in words is "nine hundred ninety million, ninety thousand, three hundred twenty-four".