44091880 has 128 divisors (see below), whose sum is σ = 122860800. Its totient is φ = 13897728.

The previous prime is 44091877. The next prime is 44091881. The reversal of 44091880 is 8819044.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (44091881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 280762 + ... + 280918.

It is an arithmetic number, because the mean of its divisors is an integer number (959850).

Almost surely, 2^44091880 is an apocalyptic number.

44091880 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 44091880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61430400).

44091880 is an abundant number, since it is smaller than the sum of its proper divisors (78768920).

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

44091880 is a wasteful number, since it uses less digits than its factorization.

44091880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 44091880 is about 6640.1716845274. The cubic root of 44091880 is about 353.2803963254.

The spelling of 44091880 in words is "forty-four million, ninety-one thousand, eight hundred eighty".