44044020 has 48 divisors (see below), whose sum is σ = 137027520. Its totient is φ = 11744928.

The previous prime is 44044019. The next prime is 44044051. The reversal of 44044020 is 2044044.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 44043984 and 44044002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40242 + ... + 41321.

It is an arithmetic number, because the mean of its divisors is an integer number (2854740).

Almost surely, 2^44044020 is an apocalyptic number.

It is an amenable number.

44044020 is an abundant number, since it is smaller than the sum of its proper divisors (92983500).

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

44044020 is a wasteful number, since it uses less digits than its factorization.

44044020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81581 (or 81573 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 44044020 is about 6636.5668835626. The cubic root of 44044020 is about 353.1525260606.

Adding to 44044020 its reverse (2044044), we get a palindrome (46088064).

The spelling of 44044020 in words is "forty-four million, forty-four thousand, twenty".