12922470 has 128 divisors (see below), whose sum is σ = 39744000. Its totient is φ = 2954880.

The previous prime is 12922453. The next prime is 12922471. The reversal of 12922470 is 7422921.

12922470 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12922471) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56316 + ... + 56544.

It is an arithmetic number, because the mean of its divisors is an integer number (310500).

Almost surely, 2^12922470 is an apocalyptic number.

12922470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12922470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19872000).

12922470 is an abundant number, since it is smaller than the sum of its proper divisors (26821530).

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

12922470 is a wasteful number, since it uses less digits than its factorization.

12922470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 12922470 is about 3594.7837208934. The cubic root of 12922470 is about 234.6651031698.

The spelling of 12922470 in words is "twelve million, nine hundred twenty-two thousand, four hundred seventy".