90022660 has 48 divisors (see below), whose sum is σ = 232678656. Its totient is φ = 28490112.

The previous prime is 90022649. The next prime is 90022661. The reversal of 90022660 is 6622009.

It is not an unprimeable number, because it can be changed into a prime (90022661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22912 + ... + 26551.

It is an arithmetic number, because the mean of its divisors is an integer number (4847472).

Almost surely, 2^90022660 is an apocalyptic number.

It is an amenable number.

90022660 is an abundant number, since it is smaller than the sum of its proper divisors (142655996).

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

90022660 is a wasteful number, since it uses less digits than its factorization.

90022660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49492 (or 49490 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 90022660 is about 9488.0271922039. The cubic root of 90022660 is about 448.1780821039.

Adding to 90022660 its reverse (6622009), we get a palindrome (96644669).

The spelling of 90022660 in words is "ninety million, twenty-two thousand, six hundred sixty".