44091964 has 30 divisors (see below), whose sum is σ = 90035344. Its totient is φ = 18892440.

The previous prime is 44091947. The next prime is 44091973. The reversal of 44091964 is 46919044.

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 7309 + ... + 11899.

Almost surely, 2^44091964 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44091964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45017672).

44091964 is an abundant number, since it is smaller than the sum of its proper divisors (45943380).

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

44091964 is an equidigital number, since it uses as much as digits as its factorization.

44091964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4623 (or 4600 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 44091964 is about 6640.1780096621. The cubic root of 44091964 is about 353.2806206716.

The spelling of 44091964 in words is "forty-four million, ninety-one thousand, nine hundred sixty-four".