4044440 has 16 divisors (see below), whose sum is σ = 9100080. Its totient is φ = 1617760.

The previous prime is 4044437. The next prime is 4044449. The reversal of 4044440 is 444404.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4044449) 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 3 ways as a sum of consecutive naturals, for example, 50516 + ... + 50595.

It is an arithmetic number, because the mean of its divisors is an integer number (568755).

Almost surely, 2^4044440 is an apocalyptic number.

4044440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4044440 is an abundant number, since it is smaller than the sum of its proper divisors (5055640).

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

4044440 is a wasteful number, since it uses less digits than its factorization.

4044440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101122 (or 101118 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 4044440 is about 2011.0793122102. The cubic root of 4044440 is about 159.3258089890.

Adding to 4044440 its reverse (444404), we get a palindrome (4488844).

The spelling of 4044440 in words is "four million, forty-four thousand, four hundred forty".