12922560 has 168 divisors, whose sum is σ = 50877216. Its totient is φ = 2949120.

The previous prime is 12922549. The next prime is 12922561. The reversal of 12922560 is 6522921.

12922560 is a `hidden beast` number, since 12 + 92 + 2 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is not an unprimeable number, because it can be changed into a prime (12922561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19840 + ... + 20480.

Almost surely, 2^12922560 is an apocalyptic number.

12922560 is a gapful number since it is divisible by the number (10) 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 12922560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25438608).

12922560 is an abundant number, since it is smaller than the sum of its proper divisors (37954656).

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

12922560 is a wasteful number, since it uses less digits than its factorization.

12922560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 12922560 is about 3594.7962390099. The cubic root of 12922560 is about 234.6656479524.

The spelling of 12922560 in words is "twelve million, nine hundred twenty-two thousand, five hundred sixty".