72280948 has 12 divisors (see below), whose sum is σ = 126771652. Its totient is φ = 36060480.

The previous prime is 72280939. The next prime is 72280951. The reversal of 72280948 is 84908227.

It can be written as a sum of positive squares in 2 ways, for example, as 25522704 + 46758244 = 5052^2 + 6838^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 72280948.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17943 + ... + 21598.

Almost surely, 2^72280948 is an apocalyptic number.

It is an amenable number.

72280948 is a deficient number, since it is larger than the sum of its proper divisors (54490704).

72280948 is a wasteful number, since it uses less digits than its factorization.

72280948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40002 (or 40000 counting only the distinct ones).

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

The square root of 72280948 is about 8501.8202756821. The cubic root of 72280948 is about 416.5571691650.

The spelling of 72280948 in words is "seventy-two million, two hundred eighty thousand, nine hundred forty-eight".