990422902 has 16 divisors (see below), whose sum is σ = 1699869600. Its totient is φ = 423966528.

The previous prime is 990422897. The next prime is 990422929. The reversal of 990422902 is 209224099.

It is a super-2 number, since 2×990422902² = 1961875049612203208, which contains 22 as substring.

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, 29277 + ... + 53272.

It is an arithmetic number, because the mean of its divisors is an integer number (106241850).

Almost surely, 2^990422902 is an apocalyptic number.

990422902 is a deficient number, since it is larger than the sum of its proper divisors (709446698).

990422902 is a wasteful number, since it uses less digits than its factorization.

990422902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83415.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 990422902 is about 31470.9850815001. The cubic root of 990422902 is about 996.7973882273.

The spelling of 990422902 in words is "nine hundred ninety million, four hundred twenty-two thousand, nine hundred two".