45109228 has 12 divisors (see below), whose sum is σ = 83584872. Its totient is φ = 21227840.

The previous prime is 45109223. The next prime is 45109271. The reversal of 45109228 is 82290154.

It is a self number, because there is not a number n which added to its sum of digits gives 45109228.

It is not an unprimeable number, because it can be changed into a prime (45109223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331618 + ... + 331753.

It is an arithmetic number, because the mean of its divisors is an integer number (6965406).

Almost surely, 2^45109228 is an apocalyptic number.

It is an amenable number.

45109228 is a deficient number, since it is larger than the sum of its proper divisors (38475644).

45109228 is a wasteful number, since it uses less digits than its factorization.

45109228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663392 (or 663390 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 45109228 is about 6716.3403725541. The cubic root of 45109228 is about 355.9768848351.

The spelling of 45109228 in words is "forty-five million, one hundred nine thousand, two hundred twenty-eight".