72998304 has 96 divisors (see below), whose sum is σ = 208373760. Its totient is φ = 22291200.

The previous prime is 72998287. The next prime is 72998311. The reversal of 72998304 is 40389927.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55899 + ... + 57189.

It is an arithmetic number, because the mean of its divisors is an integer number (2170560).

Almost surely, 2^72998304 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 72998304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104186880).

72998304 is an abundant number, since it is smaller than the sum of its proper divisors (135375456).

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

72998304 is a wasteful number, since it uses less digits than its factorization.

72998304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354 (or 1346 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 72998304 is about 8543.9044938482. The cubic root of 72998304 is about 417.9306830106.

The spelling of 72998304 in words is "seventy-two million, nine hundred ninety-eight thousand, three hundred four".