45440044 has 18 divisors (see below), whose sum is σ = 86108820. Its totient is φ = 20972016.

The previous prime is 45440009. The next prime is 45440047. The reversal of 45440044 is 44004454.

45440044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (45440047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32934 + ... + 34285.

Almost surely, 2^45440044 is an apocalyptic number.

It is an amenable number.

45440044 is a deficient number, since it is larger than the sum of its proper divisors (40668776).

45440044 is a wasteful number, since it uses less digits than its factorization.

45440044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67249 (or 67234 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 45440044 is about 6740.9230821899. The cubic root of 45440044 is about 356.8449713570.

Adding to 45440044 its reverse (44004454), we get a palindrome (89444498).

The spelling of 45440044 in words is "forty-five million, four hundred forty thousand, forty-four".