12722724 has 48 divisors (see below), whose sum is σ = 37699200. Its totient is φ = 3634848.

The previous prime is 12722707. The next prime is 12722729. The reversal of 12722724 is 42722721.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12722729) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7659 + ... + 9170.

It is an arithmetic number, because the mean of its divisors is an integer number (785400).

Almost surely, 2^12722724 is an apocalyptic number.

12722724 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12722724 is an abundant number, since it is smaller than the sum of its proper divisors (24976476).

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

12722724 is a wasteful number, since it uses less digits than its factorization.

12722724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16849 (or 16841 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 12722724 is about 3566.8927654192. The cubic root of 12722724 is about 233.4497260576.

The spelling of 12722724 in words is "twelve million, seven hundred twenty-two thousand, seven hundred twenty-four".