90622028 has 24 divisors (see below), whose sum is σ = 186144672. Its totient is φ = 37787904.

The previous prime is 90622009. The next prime is 90622031. The reversal of 90622028 is 82022609.

It is a happy 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, 42701 + ... + 44772.

It is an arithmetic number, because the mean of its divisors is an integer number (7756028).

Almost surely, 2^90622028 is an apocalyptic number.

It is an amenable number.

90622028 is an abundant number, since it is smaller than the sum of its proper divisors (95522644).

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

90622028 is a wasteful number, since it uses less digits than its factorization.

90622028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87521 (or 87519 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 90622028 is about 9519.5602839627. The cubic root of 90622028 is about 449.1705345733.

The spelling of 90622028 in words is "ninety million, six hundred twenty-two thousand, twenty-eight".