12756416 has 28 divisors (see below), whose sum is σ = 26002488. Its totient is φ = 6204672.

The previous prime is 12756413. The next prime is 12756431. The reversal of 12756416 is 61465721.

It is a super-2 number, since 2×12756416² = 325452298330112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12756413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326 + ... + 5061.

Almost surely, 2^12756416 is an apocalyptic number.

12756416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12756416 is an abundant number, since it is smaller than the sum of its proper divisors (13246072).

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

12756416 is an equidigital number, since it uses as much as digits as its factorization.

12756416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5436 (or 5426 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 12756416 is about 3571.6125209770. The cubic root of 12756416 is about 233.6556163316.

The spelling of 12756416 in words is "twelve million, seven hundred fifty-six thousand, four hundred sixteen".