990618036 has 12 divisors (see below), whose sum is σ = 2311442112. Its totient is φ = 330206008.

The previous prime is 990618023. The next prime is 990618043. The reversal of 990618036 is 630816099.

990618036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41275740 + ... + 41275763.

It is an arithmetic number, because the mean of its divisors is an integer number (192620176).

Almost surely, 2^990618036 is an apocalyptic number.

It is an amenable number.

990618036 is an abundant number, since it is smaller than the sum of its proper divisors (1320824076).

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

990618036 is a wasteful number, since it uses less digits than its factorization.

990618036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82551510 (or 82551508 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 990618036 is about 31474.0851495321. The cubic root of 990618036 is about 996.8628472308.

The spelling of 990618036 in words is "nine hundred ninety million, six hundred eighteen thousand, thirty-six".