72998244 has 72 divisors (see below), whose sum is σ = 202264608. Its totient is φ = 22014720.

The previous prime is 72998243. The next prime is 72998257. The reversal of 72998244 is 44289927.

It is a self number, because there is not a number n which added to its sum of digits gives 72998244.

It is not an unprimeable number, because it can be changed into a prime (72998243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133179 + ... + 133725.

Almost surely, 2^72998244 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 72998244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101132304).

72998244 is an abundant number, since it is smaller than the sum of its proper divisors (129266364).

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

72998244 is a wasteful number, since it uses less digits than its factorization.

72998244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905 (or 900 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 72998244 is about 8543.9009825723. The cubic root of 72998244 is about 417.9305685064.

The spelling of 72998244 in words is "seventy-two million, nine hundred ninety-eight thousand, two hundred forty-four".