72280834 has 8 divisors (see below), whose sum is σ = 109201680. Its totient is φ = 35880276.

The previous prime is 72280829. The next prime is 72280837. The reversal of 72280834 is 43808227.

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

It is a self number, because there is not a number n which added to its sum of digits gives 72280834.

It is not an unprimeable number, because it can be changed into a prime (72280837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129724 + ... + 130279.

It is an arithmetic number, because the mean of its divisors is an integer number (13650210).

Almost surely, 2^72280834 is an apocalyptic number.

72280834 is a deficient number, since it is larger than the sum of its proper divisors (36920846).

72280834 is a wasteful number, since it uses less digits than its factorization.

72280834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260144.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 72280834 is about 8501.8135712329. The cubic root of 72280834 is about 416.5569501698.

The spelling of 72280834 in words is "seventy-two million, two hundred eighty thousand, eight hundred thirty-four".