45440244 has 24 divisors (see below), whose sum is σ = 117808320. Its totient is φ = 15146712.

The previous prime is 45440243. The next prime is 45440261. The reversal of 45440244 is 44204454.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45440243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210264 + ... + 210479.

It is an arithmetic number, because the mean of its divisors is an integer number (4908680).

Almost surely, 2^45440244 is an apocalyptic number.

It is an amenable number.

45440244 is an abundant number, since it is smaller than the sum of its proper divisors (72368076).

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

45440244 is a wasteful number, since it uses less digits than its factorization.

45440244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420756 (or 420748 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 45440244 is about 6740.9379169371. The cubic root of 45440244 is about 356.8454948959.

Adding to 45440244 its reverse (44204454), we get a palindrome (89644698).

The spelling of 45440244 in words is "forty-five million, four hundred forty thousand, two hundred forty-four".