44099840 has 72 divisors (see below), whose sum is σ = 106843968. Its totient is φ = 17438720.

The previous prime is 44099801. The next prime is 44099849. The reversal of 44099840 is 4899044.

It is a junction number, because it is equal to n+sod(n) for n = 44099794 and 44099803.

It is not an unprimeable number, because it can be changed into a prime (44099849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167549 + ... + 167811.

It is an arithmetic number, because the mean of its divisors is an integer number (1483944).

Almost surely, 2^44099840 is an apocalyptic number.

44099840 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 44099840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53421984).

44099840 is an abundant number, since it is smaller than the sum of its proper divisors (62744128).

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

44099840 is a wasteful number, since it uses less digits than its factorization.

44099840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 44099840 is about 6640.7710395706. The cubic root of 44099840 is about 353.3016545310.

The spelling of 44099840 in words is "forty-four million, ninety-nine thousand, eight hundred forty".