990113604 has 12 divisors (see below), whose sum is σ = 2310265104. Its totient is φ = 330037864.

The previous prime is 990113603. The next prime is 990113611. The reversal of 990113604 is 406311099.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (990113603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41254722 + ... + 41254745.

It is an arithmetic number, because the mean of its divisors is an integer number (192522092).

Almost surely, 2^990113604 is an apocalyptic number.

It is an amenable number.

990113604 is an abundant number, since it is smaller than the sum of its proper divisors (1320151500).

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

990113604 is a wasteful number, since it uses less digits than its factorization.

990113604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82509474 (or 82509472 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 990113604 is about 31466.0706793842. The cubic root of 990113604 is about 996.6936145305.

The spelling of 990113604 in words is "nine hundred ninety million, one hundred thirteen thousand, six hundred four".