440402400012 has 12 divisors (see below), whose sum is σ = 1027605600056. Its totient is φ = 146800800000.

The previous prime is 440402400007. The next prime is 440402400029. The reversal of 440402400012 is 210004204044.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18350099989 + ... + 18350100012.

Almost surely, 2^440402400012 is an apocalyptic number.

It is an amenable number.

440402400012 is an abundant number, since it is smaller than the sum of its proper divisors (587203200044).

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

440402400012 is a wasteful number, since it uses less digits than its factorization.

440402400012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36700200008 (or 36700200006 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 440402400012 its reverse (210004204044), we get a palindrome (650406604056).

The spelling of 440402400012 in words is "four hundred forty billion, four hundred two million, four hundred thousand, twelve".