440740044 has 18 divisors (see below), whose sum is σ = 1114092980. Its totient is φ = 146913336.

The previous prime is 440740039. The next prime is 440740061. The reversal of 440740044 is 440047044.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6121354 + ... + 6121425.

Almost surely, 2^440740044 is an apocalyptic number.

It is an amenable number.

440740044 is an abundant number, since it is smaller than the sum of its proper divisors (673352936).

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

440740044 is a wasteful number, since it uses less digits than its factorization.

440740044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12242789 (or 12242784 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 27.

The square root of 440740044 is about 20993.8096590400. The cubic root of 440740044 is about 761.0166703018.

Adding to 440740044 its reverse (440047044), we get a palindrome (880787088).

The spelling of 440740044 in words is "four hundred forty million, seven hundred forty thousand, forty-four".