22889520 has 80 divisors (see below), whose sum is σ = 78849120. Its totient is φ = 6103296.

The previous prime is 22889513. The next prime is 22889527. The reversal of 22889520 is 2598822.

It is an interprime number because it is at equal distance from previous prime (22889513) and next prime (22889527).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (22889527) 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, 3139 + ... + 7458.

It is an arithmetic number, because the mean of its divisors is an integer number (985614).

Almost surely, 2^22889520 is an apocalyptic number.

22889520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22889520 is an abundant number, since it is smaller than the sum of its proper divisors (55959600).

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

22889520 is a wasteful number, since it uses less digits than its factorization.

22889520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10619 (or 10607 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 22889520 is about 4784.2993217398. The cubic root of 22889520 is about 283.9306185073.

It can be divided in two parts, 22889 and 520, that added together give a square (23409 = 153²).

The spelling of 22889520 in words is "twenty-two million, eight hundred eighty-nine thousand, five hundred twenty".