90242922 has 64 divisors (see below), whose sum is σ = 232316928. Its totient is φ = 22680000.

The previous prime is 90242921. The next prime is 90242923. The reversal of 90242922 is 22924209.

It is an interprime number because it is at equal distance from previous prime (90242921) and next prime (90242923).

It is a self number, because there is not a number n which added to its sum of digits gives 90242922.

It is not an unprimeable number, because it can be changed into a prime (90242921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11172 + ... + 17472.

It is an arithmetic number, because the mean of its divisors is an integer number (3629952).

Almost surely, 2^90242922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90242922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116158464).

90242922 is an abundant number, since it is smaller than the sum of its proper divisors (142074006).

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

90242922 is a wasteful number, since it uses less digits than its factorization.

90242922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6355.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 90242922 is about 9499.6274663799. The cubic root of 90242922 is about 448.5433094023.

The spelling of 90242922 in words is "ninety million, two hundred forty-two thousand, nine hundred twenty-two".