12972402 has 48 divisors (see below), whose sum is σ = 30008160. Its totient is φ = 4038336.

The previous prime is 12972371. The next prime is 12972457. The reversal of 12972402 is 20427921.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28158 + ... + 28614.

It is an arithmetic number, because the mean of its divisors is an integer number (625170).

Almost surely, 2^12972402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12972402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15004080).

12972402 is an abundant number, since it is smaller than the sum of its proper divisors (17035758).

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

12972402 is a wasteful number, since it uses less digits than its factorization.

12972402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567 (or 564 counting only the distinct ones).

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

The square root of 12972402 is about 3601.7220881129. The cubic root of 12972402 is about 234.9669607996.

The spelling of 12972402 in words is "twelve million, nine hundred seventy-two thousand, four hundred two".