990349524 has 48 divisors (see below), whose sum is σ = 2569371840. Its totient is φ = 329885280.

The previous prime is 990349519. The next prime is 990349537. The reversal of 990349524 is 425943099.

It is a happy number.

990349524 is a `hidden beast` number, since 9 + 90 + 34 + 9 + 524 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 990349524.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229087 + ... + 233369.

It is an arithmetic number, because the mean of its divisors is an integer number (53528580).

Almost surely, 2^990349524 is an apocalyptic number.

It is an amenable number.

990349524 is an abundant number, since it is smaller than the sum of its proper divisors (1579022316).

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

990349524 is a wasteful number, since it uses less digits than its factorization.

990349524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6437 (or 6429 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 990349524 is about 31469.8192559157. The cubic root of 990349524 is about 996.7727708626.

The spelling of 990349524 in words is "nine hundred ninety million, three hundred forty-nine thousand, five hundred twenty-four".