22989516 has 72 divisors (see below), whose sum is σ = 60060672. Its totient is φ = 6837600.

The previous prime is 22989503. The next prime is 22989521. The reversal of 22989516 is 61598922.

22989516 = T₁₂₃ + T₁₂₄ + ... + T₅₁₈.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 102981 + ... + 103203.

It is an arithmetic number, because the mean of its divisors is an integer number (834176).

Almost surely, 2^22989516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22989516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30030336).

22989516 is an abundant number, since it is smaller than the sum of its proper divisors (37071156).

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

22989516 is a wasteful number, since it uses less digits than its factorization.

22989516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 310 counting only the distinct ones).

The product of its digits is 77760, while the sum is 42.

The square root of 22989516 is about 4794.7383661676. The cubic root of 22989516 is about 284.3434811261.

The spelling of 22989516 in words is "twenty-two million, nine hundred eighty-nine thousand, five hundred sixteen".