12397944 has 64 divisors (see below), whose sum is σ = 33868800. Its totient is φ = 3758976.

The previous prime is 12397939. The next prime is 12397961. The reversal of 12397944 is 44979321.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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, 24397 + ... + 24899.

It is an arithmetic number, because the mean of its divisors is an integer number (529200).

Almost surely, 2^12397944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12397944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16934400).

12397944 is an abundant number, since it is smaller than the sum of its proper divisors (21470856).

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

12397944 is a wasteful number, since it uses less digits than its factorization.

12397944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604 (or 600 counting only the distinct ones).

The product of its digits is 54432, while the sum is 39.

The square root of 12397944 is about 3521.0714278469. The cubic root of 12397944 is about 231.4461122856.

The spelling of 12397944 in words is "twelve million, three hundred ninety-seven thousand, nine hundred forty-four".