73239712 has 72 divisors (see below), whose sum is σ = 180684756. Its totient is φ = 28965888.

The previous prime is 73239697. The next prime is 73239731. The reversal of 73239712 is 21793237.

It can be written as a sum of positive squares in 2 ways, for example, as 67305616 + 5934096 = 8204^2 + 2436^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18588 + ... + 22180.

Almost surely, 2^73239712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73239712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90342378).

73239712 is an abundant number, since it is smaller than the sum of its proper divisors (107445044).

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

73239712 is a wasteful number, since it uses less digits than its factorization.

73239712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3630 (or 3615 counting only the distinct ones).

The product of its digits is 15876, while the sum is 34.

The square root of 73239712 is about 8558.0203318291. The cubic root of 73239712 is about 418.3908799882.

The spelling of 73239712 in words is "seventy-three million, two hundred thirty-nine thousand, seven hundred twelve".