45079812 has 18 divisors (see below), whose sum is σ = 113951838. Its totient is φ = 15026592.

The previous prime is 45079777. The next prime is 45079819. The reversal of 45079812 is 21897054.

It can be written as a sum of positive squares in only one way, i.e., 37161216 + 7918596 = 6096^2 + 2814^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1252217 = 45079812 / (4 + 5 + 0 + 7 + 9 + 8 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (45079819) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 626073 + ... + 626144.

Almost surely, 2^45079812 is an apocalyptic number.

It is an amenable number.

45079812 is an abundant number, since it is smaller than the sum of its proper divisors (68872026).

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

45079812 is a wasteful number, since it uses less digits than its factorization.

45079812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252227 (or 1252222 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 45079812 is about 6714.1501323697. The cubic root of 45079812 is about 355.8994897839.

The spelling of 45079812 in words is "forty-five million, seventy-nine thousand, eight hundred twelve".