990081802 has 16 divisors (see below), whose sum is σ = 1574052480. Its totient is φ = 465455808.

The previous prime is 990081797. The next prime is 990081803. The reversal of 990081802 is 208180099.

It is not an unprimeable number, because it can be changed into a prime (990081803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21313 + ... + 49339.

It is an arithmetic number, because the mean of its divisors is an integer number (98378280).

Almost surely, 2^990081802 is an apocalyptic number.

990081802 is a deficient number, since it is larger than the sum of its proper divisors (583970678).

990081802 is a wasteful number, since it uses less digits than its factorization.

990081802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29085.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 990081802 is about 31465.5653373652. The cubic root of 990081802 is about 996.6829433006.

The spelling of 990081802 in words is "nine hundred ninety million, eighty-one thousand, eight hundred two".