72944590 has 8 divisors (see below), whose sum is σ = 131300280. Its totient is φ = 29177832.

The previous prime is 72944587. The next prime is 72944687. The reversal of 72944590 is 9544927.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 3647220 + ... + 3647239.

It is an arithmetic number, because the mean of its divisors is an integer number (16412535).

Almost surely, 2^72944590 is an apocalyptic number.

72944590 is a deficient number, since it is larger than the sum of its proper divisors (58355690).

72944590 is a wasteful number, since it uses less digits than its factorization.

72944590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7294466.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 72944590 is about 8540.7605047794. The cubic root of 72944590 is about 417.8281498656.

The spelling of 72944590 in words is "seventy-two million, nine hundred forty-four thousand, five hundred ninety".