90222252 has 24 divisors (see below), whose sum is σ = 210783216. Its totient is φ = 30036288.

The previous prime is 90222239. The next prime is 90222283. The reversal of 90222252 is 25222209.

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, 6238 + ... + 14810.

It is an arithmetic number, because the mean of its divisors is an integer number (8782634).

Almost surely, 2^90222252 is an apocalyptic number.

It is an amenable number.

90222252 is an abundant number, since it is smaller than the sum of its proper divisors (120560964).

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

90222252 is a wasteful number, since it uses less digits than its factorization.

90222252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9457 (or 9455 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 90222252 is about 9498.5394666759. The cubic root of 90222252 is about 448.5090607397.

The spelling of 90222252 in words is "ninety million, two hundred twenty-two thousand, two hundred fifty-two".