90022002 has 16 divisors (see below), whose sum is σ = 205764672. Its totient is φ = 25720560.

The previous prime is 90021983. The next prime is 90022013. The reversal of 90022002 is 20022009.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1071649 + ... + 1071732.

It is an arithmetic number, because the mean of its divisors is an integer number (12860292).

Almost surely, 2^90022002 is an apocalyptic number.

90022002 is an abundant number, since it is smaller than the sum of its proper divisors (115742670).

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

90022002 is a wasteful number, since it uses less digits than its factorization.

90022002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143393.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 90022002 is about 9487.9925168605. The cubic root of 90022002 is about 448.1769901496.

The spelling of 90022002 in words is "ninety million, twenty-two thousand, two".