72744092 has 6 divisors (see below), whose sum is σ = 127302168. Its totient is φ = 36372044.

The previous prime is 72744053. The next prime is 72744131. The reversal of 72744092 is 29044727.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (72744053) and next prime (72744131).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9093008 + ... + 9093015.

It is an arithmetic number, because the mean of its divisors is an integer number (21217028).

Almost surely, 2^72744092 is an apocalyptic number.

It is an amenable number.

72744092 is a deficient number, since it is larger than the sum of its proper divisors (54558076).

72744092 is a wasteful number, since it uses less digits than its factorization.

72744092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18186027 (or 18186025 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 72744092 is about 8529.0147144908. The cubic root of 72744092 is about 417.4449796619. Note that the first 3 decimals are identical.

The spelling of 72744092 in words is "seventy-two million, seven hundred forty-four thousand, ninety-two".