44800021560 has 128 divisors (see below), whose sum is σ = 153742510080. Its totient is φ = 10230509568.

The previous prime is 44800021559. The next prime is 44800021561. The reversal of 44800021560 is 6512000844.

It is an interprime number because it is at equal distance from previous prime (44800021559) and next prime (44800021561).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44800021561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 902344 + ... + 950696.

It is an arithmetic number, because the mean of its divisors is an integer number (1201113360).

Almost surely, 2^44800021560 is an apocalyptic number.

44800021560 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 44800021560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76871255040).

44800021560 is an abundant number, since it is smaller than the sum of its proper divisors (108942488520).

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

44800021560 is a wasteful number, since it uses less digits than its factorization.

44800021560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49477 (or 49473 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The spelling of 44800021560 in words is "forty-four billion, eight hundred million, twenty-one thousand, five hundred sixty".