45044140 has 36 divisors (see below), whose sum is σ = 96371856. Its totient is φ = 17684896.

The previous prime is 45044137. The next prime is 45044171. The reversal of 45044140 is 4144054.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69297 + ... + 69943.

It is an arithmetic number, because the mean of its divisors is an integer number (2676996).

Almost surely, 2^45044140 is an apocalyptic number.

It is an amenable number.

45044140 is an abundant number, since it is smaller than the sum of its proper divisors (51327716).

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

45044140 is a wasteful number, since it uses less digits than its factorization.

45044140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774 (or 713 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 45044140 is about 6711.4931274643. The cubic root of 45044140 is about 355.8055896822.

Adding to 45044140 its reverse (4144054), we get a palindrome (49188194).

The spelling of 45044140 in words is "forty-five million, forty-four thousand, one hundred forty".