12724416 has 42 divisors (see below), whose sum is σ = 36473892. Its totient is φ = 4241280.

The previous prime is 12724351. The next prime is 12724421. The reversal of 12724416 is 61442721.

It is a self number, because there is not a number n which added to its sum of digits gives 12724416.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10470 + ... + 11621.

It is an arithmetic number, because the mean of its divisors is an integer number (868426).

Almost surely, 2^12724416 is an apocalyptic number.

12724416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12724416 is an abundant number, since it is smaller than the sum of its proper divisors (23749476).

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

12724416 is a wasteful number, since it uses less digits than its factorization.

12724416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22109 (or 22096 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 12724416 is about 3567.1299387603. The cubic root of 12724416 is about 233.4600744554.

It can be divided in two parts, 127244 and 16, that added together give a triangular number (127260 = T₅₀₄).

The spelling of 12724416 in words is "twelve million, seven hundred twenty-four thousand, four hundred sixteen".