72951290 has 16 divisors (see below), whose sum is σ = 132614280. Its totient is φ = 28891200.

The previous prime is 72951289. The next prime is 72951311. The reversal of 72951290 is 9215927.

It can be written as a sum of positive squares in 4 ways, for example, as 63409369 + 9541921 = 7963^2 + 3089^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 72951290.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35105 + ... + 37124.

Almost surely, 2^72951290 is an apocalyptic number.

72951290 is a deficient number, since it is larger than the sum of its proper divisors (59662990).

72951290 is a wasteful number, since it uses less digits than its factorization.

72951290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72337.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 72951290 is about 8541.1527325063. The cubic root of 72951290 is about 417.8409420544.

The spelling of 72951290 in words is "seventy-two million, nine hundred fifty-one thousand, two hundred ninety".