22949520 has 80 divisors (see below), whose sum is σ = 77620032. Its totient is φ = 5562880.

The previous prime is 22949519. The next prime is 22949557. The reversal of 22949520 is 2594922.

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 (33).

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, 1707 + ... + 6986.

Almost surely, 2^22949520 is an apocalyptic number.

22949520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22949520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38810016).

22949520 is an abundant number, since it is smaller than the sum of its proper divisors (54670512).

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

22949520 is a wasteful number, since it uses less digits than its factorization.

22949520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8720 (or 8714 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 22949520 is about 4790.5657285962. The cubic root of 22949520 is about 284.1784899273.

The spelling of 22949520 in words is "twenty-two million, nine hundred forty-nine thousand, five hundred twenty".