44646444040 has 32 divisors (see below), whose sum is σ = 109586727360. Its totient is φ = 16235070400.

The previous prime is 44646443993. The next prime is 44646444041. The reversal of 44646444040 is 4044464644.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 44646443984 and 44646444002.

It is not an unprimeable number, because it can be changed into a prime (44646444041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50734156 + ... + 50735035.

It is an arithmetic number, because the mean of its divisors is an integer number (3424585230).

Almost surely, 2^44646444040 is an apocalyptic number.

44646444040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44646444040 is an abundant number, since it is smaller than the sum of its proper divisors (64940283320).

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

44646444040 is a wasteful number, since it uses less digits than its factorization.

44646444040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101469213 (or 101469209 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 40.

The spelling of 44646444040 in words is "forty-four billion, six hundred forty-six million, four hundred forty-four thousand, forty".