44644446040 has 16 divisors (see below), whose sum is σ = 100450003680. Its totient is φ = 17857778400.

The previous prime is 44644446031. The next prime is 44644446047. The reversal of 44644446040 is 4064444644.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 1116111151 = 44644446040 / (4 + 4 + 6 + 4 + 4 + 4 + 4 + 6 + 0 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 44644445984 and 44644446002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44644446047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558055536 + ... + 558055615.

It is an arithmetic number, because the mean of its divisors is an integer number (6278125230).

Almost surely, 2^44644446040 is an apocalyptic number.

44644446040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44644446040 is an abundant number, since it is smaller than the sum of its proper divisors (55805557640).

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

44644446040 is a wasteful number, since it uses less digits than its factorization.

44644446040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116111162 (or 1116111158 counting only the distinct ones).

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

The spelling of 44644446040 in words is "forty-four billion, six hundred forty-four million, four hundred forty-six thousand, forty".