22992560 has 40 divisors (see below), whose sum is σ = 53809056. Its totient is φ = 9136640.

The previous prime is 22992559. The next prime is 22992581. The reversal of 22992560 is 6529922.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 22992560.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12500 + ... + 14220.

Almost surely, 2^22992560 is an apocalyptic number.

22992560 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 22992560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26904528).

22992560 is an abundant number, since it is smaller than the sum of its proper divisors (30816496).

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

22992560 is a wasteful number, since it uses less digits than its factorization.

22992560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901 (or 1895 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 22992560 is about 4795.0557869539. The cubic root of 22992560 is about 284.3560303733.

The spelling of 22992560 in words is "twenty-two million, nine hundred ninety-two thousand, five hundred sixty".