44440231680 has 864 divisors, whose sum is σ = 173635478016. Its totient is φ = 10423074816.

The previous prime is 44440231673. The next prime is 44440231699. The reversal of 44440231680 is 8613204444.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 431458509 + ... + 431458611.

Almost surely, 2^44440231680 is an apocalyptic number.

44440231680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44440231680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86817739008).

44440231680 is an abundant number, since it is smaller than the sum of its proper divisors (129195246336).

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

44440231680 is a wasteful number, since it uses less digits than its factorization.

44440231680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 236 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 36.

The spelling of 44440231680 in words is "forty-four billion, four hundred forty million, two hundred thirty-one thousand, six hundred eighty".