12304656 has 160 divisors (see below), whose sum is σ = 43608320. Its totient is φ = 3234816.

The previous prime is 12304631. The next prime is 12304657. The reversal of 12304656 is 65640321.

12304656 is a `hidden beast` number, since 1 + 2 + 3 + 0 + 4 + 656 = 666.

12304656 is nontrivially palindromic in base 5.

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

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (12304657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39156 + ... + 39468.

It is an arithmetic number, because the mean of its divisors is an integer number (272552).

Almost surely, 2^12304656 is an apocalyptic number.

12304656 is a gapful number since it is divisible by the number (16) 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 12304656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21804160).

12304656 is an abundant number, since it is smaller than the sum of its proper divisors (31303664).

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

12304656 is a wasteful number, since it uses less digits than its factorization.

12304656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 338 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 12304656 is about 3507.7993101088. The cubic root of 12304656 is about 230.8641468016.

Adding to 12304656 its reverse (65640321), we get a palindrome (77944977).

It can be divided in two parts, 1230 and 4656, that added together give a triangular number (5886 = T₁₀₈).

The spelling of 12304656 in words is "twelve million, three hundred four thousand, six hundred fifty-six".