90440105252 has 24 divisors (see below), whose sum is σ = 180992024640. Its totient is φ = 38736084960.

The previous prime is 90440105237. The next prime is 90440105263. The reversal of 90440105252 is 25250104409.

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, 952199 + ... + 1042862.

It is an arithmetic number, because the mean of its divisors is an integer number (7541334360).

Almost surely, 2^90440105252 is an apocalyptic number.

It is an amenable number.

90440105252 is an abundant number, since it is smaller than the sum of its proper divisors (90551919388).

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

90440105252 is a wasteful number, since it uses less digits than its factorization.

90440105252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996691 (or 1996689 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 90440105252 in words is "ninety billion, four hundred forty million, one hundred five thousand, two hundred fifty-two".