440002444 has 24 divisors (see below), whose sum is σ = 881465760. Its totient is φ = 188259456.

The previous prime is 440002441. The next prime is 440002469. The reversal of 440002444 is 444200044.

It is not an unprimeable number, because it can be changed into a prime (440002441) 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, 4542 + ... + 30010.

It is an arithmetic number, because the mean of its divisors is an integer number (36727740).

Almost surely, 2^440002444 is an apocalyptic number.

It is an amenable number.

440002444 is an abundant number, since it is smaller than the sum of its proper divisors (441463316).

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

440002444 is a wasteful number, since it uses less digits than its factorization.

440002444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26097 (or 26095 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 440002444 is about 20976.2352198863. The cubic root of 440002444 is about 760.5919003945.

Adding to 440002444 its reverse (444200044), we get a palindrome (884202488).

The spelling of 440002444 in words is "four hundred forty million, two thousand, four hundred forty-four".