72944562 has 16 divisors (see below), whose sum is σ = 146069280. Its totient is φ = 24284832.

The previous prime is 72944561. The next prime is 72944563. The reversal of 72944562 is 26544927.

It is an interprime number because it is at equal distance from previous prime (72944561) and next prime (72944563).

It is a self number, because there is not a number n which added to its sum of digits gives 72944562.

It is not an unprimeable number, because it can be changed into a prime (72944561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1923 + ... + 12230.

It is an arithmetic number, because the mean of its divisors is an integer number (9129330).

Almost surely, 2^72944562 is an apocalyptic number.

72944562 is an abundant number, since it is smaller than the sum of its proper divisors (73124718).

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

72944562 is a wasteful number, since it uses less digits than its factorization.

72944562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15017.

The product of its digits is 120960, while the sum is 39.

The square root of 72944562 is about 8540.7588655810. The cubic root of 72944562 is about 417.8280964041.

The spelling of 72944562 in words is "seventy-two million, nine hundred forty-four thousand, five hundred sixty-two".