72744412 has 24 divisors (see below), whose sum is σ = 141825600. Its totient is φ = 32415936.

The previous prime is 72744403. The next prime is 72744421. The reversal of 72744412 is 21444727.

It is an interprime number because it is at equal distance from previous prime (72744403) and next prime (72744421).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22612 + ... + 25627.

It is an arithmetic number, because the mean of its divisors is an integer number (5909400).

Almost surely, 2^72744412 is an apocalyptic number.

It is an amenable number.

72744412 is a deficient number, since it is larger than the sum of its proper divisors (69081188).

72744412 is a wasteful number, since it uses less digits than its factorization.

72744412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48285 (or 48283 counting only the distinct ones).

The product of its digits is 12544, while the sum is 31.

The square root of 72744412 is about 8529.0334739641. The cubic root of 72744412 is about 417.4455917720.

The spelling of 72744412 in words is "seventy-two million, seven hundred forty-four thousand, four hundred twelve".