72275044 has 12 divisors (see below), whose sum is σ = 128369584. Its totient is φ = 35598024.

The previous prime is 72275017. The next prime is 72275083. The reversal of 72275044 is 44057227.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 72274997 and 72275015.

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, 134574 + ... + 135109.

Almost surely, 2^72275044 is an apocalyptic number.

It is an amenable number.

72275044 is a deficient number, since it is larger than the sum of its proper divisors (56094540).

72275044 is a wasteful number, since it uses less digits than its factorization.

72275044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269754 (or 269752 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 72275044 is about 8501.4730488310. The cubic root of 72275044 is about 416.5458272160.

The spelling of 72275044 in words is "seventy-two million, two hundred seventy-five thousand, forty-four".