45072272 has 40 divisors (see below), whose sum is σ = 104148096. Its totient is φ = 18475776.

The previous prime is 45072259. The next prime is 45072281. The reversal of 45072272 is 27227054.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6173 + ... + 11324.

Almost surely, 2^45072272 is an apocalyptic number.

It is an amenable number.

45072272 is an abundant number, since it is smaller than the sum of its proper divisors (59075824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45072272 is a wasteful number, since it uses less digits than its factorization.

45072272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17535 (or 17529 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 45072272 is about 6713.5886081886. The cubic root of 45072272 is about 355.8796462245.

The spelling of 45072272 in words is "forty-five million, seventy-two thousand, two hundred seventy-two".