72280934 has 32 divisors (see below), whose sum is σ = 123098400. Its totient is φ = 31530240.

The previous prime is 72280919. The next prime is 72280937. The reversal of 72280934 is 43908227.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 72280894 and 72280903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72280937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176522 + ... + 176930.

It is an arithmetic number, because the mean of its divisors is an integer number (3846825).

Almost surely, 2^72280934 is an apocalyptic number.

72280934 is a deficient number, since it is larger than the sum of its proper divisors (50817466).

72280934 is a wasteful number, since it uses less digits than its factorization.

72280934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 72280934 is about 8501.8194523290. The cubic root of 72280934 is about 416.5571422709.

The spelling of 72280934 in words is "seventy-two million, two hundred eighty thousand, nine hundred thirty-four".