990107404 has 192 divisors, whose sum is σ = 2377589760. Its totient is φ = 352788480.

The previous prime is 990107389. The next prime is 990107407. The reversal of 990107404 is 404701099.

990107404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 990107404.

It is not an unprimeable number, because it can be changed into a prime (990107407) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4249272 + ... + 4249504.

It is an arithmetic number, because the mean of its divisors is an integer number (12383280).

Almost surely, 2^990107404 is an apocalyptic number.

It is an amenable number.

990107404 is an abundant number, since it is smaller than the sum of its proper divisors (1387482356).

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

990107404 is a wasteful number, since it uses less digits than its factorization.

990107404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 990107404 is about 31465.9721604148. The cubic root of 990107404 is about 996.6915341250.

The spelling of 990107404 in words is "nine hundred ninety million, one hundred seven thousand, four hundred four".