44006400812 has 12 divisors (see below), whose sum is σ = 84012219816. Its totient is φ = 20002909440.

The previous prime is 44006400773. The next prime is 44006400863. The reversal of 44006400812 is 21800460044.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

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, 500072693 + ... + 500072780.

It is an arithmetic number, because the mean of its divisors is an integer number (7001018318).

Almost surely, 2^44006400812 is an apocalyptic number.

It is an amenable number.

44006400812 is a deficient number, since it is larger than the sum of its proper divisors (40005819004).

44006400812 is a wasteful number, since it uses less digits than its factorization.

44006400812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000145488 (or 1000145486 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 44006400812 its reverse (21800460044), we get a palindrome (65806860856).

The spelling of 44006400812 in words is "forty-four billion, six million, four hundred thousand, eight hundred twelve".