44644430412 has 18 divisors (see below), whose sum is σ = 112851199188. Its totient is φ = 14881476792.

The previous prime is 44644430351. The next prime is 44644430431. The reversal of 44644430412 is 21403444644.

44644430412 is a `hidden beast` number, since 4 + 4 + 644 + 4 + 3 + 0 + 4 + 1 + 2 = 666.

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

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1240123067 = 44644430412 / (4 + 4 + 6 + 4 + 4 + 4 + 3 + 0 + 4 + 1 + 2).

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, 620061498 + ... + 620061569.

It is an arithmetic number, because the mean of its divisors is an integer number (6269511066).

Almost surely, 2^44644430412 is an apocalyptic number.

It is an amenable number.

44644430412 is an abundant number, since it is smaller than the sum of its proper divisors (68206768776).

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

44644430412 is a wasteful number, since it uses less digits than its factorization.

44644430412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240123077 (or 1240123072 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

The spelling of 44644430412 in words is "forty-four billion, six hundred forty-four million, four hundred thirty thousand, four hundred twelve".