12394656 has 36 divisors (see below), whose sum is σ = 35248122. Its totient is φ = 4131456.

The previous prime is 12394609. The next prime is 12394663. The reversal of 12394656 is 65649321.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12362256 + 32400 = 3516^2 + 180^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12394656.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21231 + ... + 21806.

Almost surely, 2^12394656 is an apocalyptic number.

12394656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12394656 is an abundant number, since it is smaller than the sum of its proper divisors (22853466).

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

12394656 is a wasteful number, since it uses less digits than its factorization.

12394656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43053 (or 43042 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 12394656 is about 3520.6044935494. The cubic root of 12394656 is about 231.4256502342.

The spelling of 12394656 in words is "twelve million, three hundred ninety-four thousand, six hundred fifty-six".