44240697720 has 128 divisors (see below), whose sum is σ = 147534696000. Its totient is φ = 11792263680.

The previous prime is 44240697719. The next prime is 44240697757. The reversal of 44240697720 is 2779604244.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2822866 + ... + 2838494.

Almost surely, 2^44240697720 is an apocalyptic number.

44240697720 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 44240697720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73767348000).

44240697720 is an abundant number, since it is smaller than the sum of its proper divisors (103293998280).

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

44240697720 is a wasteful number, since it uses less digits than its factorization.

44240697720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18270 (or 18260 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 45.

The spelling of 44240697720 in words is "forty-four billion, two hundred forty million, six hundred ninety-seven thousand, seven hundred twenty".