45004442 has 12 divisors (see below), whose sum is σ = 78528330. Its totient is φ = 19287576.

The previous prime is 45004441. The next prime is 45004451. The reversal of 45004442 is 24440054.

It can be written as a sum of positive squares in only one way, i.e., 24492601 + 20511841 = 4949^2 + 4529^2 .

It is not an unprimeable number, because it can be changed into a prime (45004441) 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, 229517 + ... + 229712.

Almost surely, 2^45004442 is an apocalyptic number.

45004442 is a deficient number, since it is larger than the sum of its proper divisors (33523888).

45004442 is a wasteful number, since it uses less digits than its factorization.

45004442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459245 (or 459238 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 45004442 is about 6708.5350114611. The cubic root of 45004442 is about 355.7010335603.

Adding to 45004442 its reverse (24440054), we get a palindrome (69444496).

The spelling of 45004442 in words is "forty-five million, four thousand, four hundred forty-two".