90004422 has 32 divisors (see below), whose sum is σ = 182407680. Its totient is φ = 29604960.

The previous prime is 90004417. The next prime is 90004459. The reversal of 90004422 is 22440009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194163 + ... + 194625.

It is an arithmetic number, because the mean of its divisors is an integer number (5700240).

Almost surely, 2^90004422 is an apocalyptic number.

90004422 is an abundant number, since it is smaller than the sum of its proper divisors (92403258).

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

90004422 is a wasteful number, since it uses less digits than its factorization.

90004422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 90004422 is about 9487.0660375060. The cubic root of 90004422 is about 448.1478140806.

The spelling of 90004422 in words is "ninety million, four thousand, four hundred twenty-two".