72280894 has 16 divisors (see below), whose sum is σ = 124563456. Its totient is φ = 30814200.

The previous prime is 72280891. The next prime is 72280903. The reversal of 72280894 is 49808227.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72280891) 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, 10842 + ... + 16189.

It is an arithmetic number, because the mean of its divisors is an integer number (7785216).

Almost surely, 2^72280894 is an apocalyptic number.

72280894 is a deficient number, since it is larger than the sum of its proper divisors (52282562).

72280894 is a wasteful number, since it uses less digits than its factorization.

72280894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27231.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 72280894 is about 8501.8170998911. The cubic root of 72280894 is about 416.5570654305.

The spelling of 72280894 in words is "seventy-two million, two hundred eighty thousand, eight hundred ninety-four".