45651472 has 10 divisors (see below), whose sum is σ = 88449758. Its totient is φ = 22825728.

The previous prime is 45651421. The next prime is 45651479. The reversal of 45651472 is 27415654.

It can be written as a sum of positive squares in only one way, i.e., 31181056 + 14470416 = 5584^2 + 3804^2 .

It is not an unprimeable number, because it can be changed into a prime (45651479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1426593 + ... + 1426624.

Almost surely, 2^45651472 is an apocalyptic number.

It is an amenable number.

45651472 is a deficient number, since it is larger than the sum of its proper divisors (42798286).

45651472 is a wasteful number, since it uses less digits than its factorization.

45651472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2853225 (or 2853219 counting only the distinct ones).

The product of its digits is 33600, while the sum is 34.

The square root of 45651472 is about 6756.5873042535. The cubic root of 45651472 is about 357.3975698854.

The spelling of 45651472 in words is "forty-five million, six hundred fifty-one thousand, four hundred seventy-two".