990334940 has 24 divisors (see below), whose sum is σ = 2376804192. Its totient is φ = 339543360.

The previous prime is 990334937. The next prime is 990334963. The reversal of 990334940 is 49433099.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3536771 + ... + 3537050.

It is an arithmetic number, because the mean of its divisors is an integer number (99033508).

Almost surely, 2^990334940 is an apocalyptic number.

It is an amenable number.

990334940 is an abundant number, since it is smaller than the sum of its proper divisors (1386469252).

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

990334940 is a wasteful number, since it uses less digits than its factorization.

990334940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7073837 (or 7073835 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 990334940 is about 31469.5875409895. The cubic root of 990334940 is about 996.7678779755.

The spelling of 990334940 in words is "nine hundred ninety million, three hundred thirty-four thousand, nine hundred forty".