44091668 has 12 divisors (see below), whose sum is σ = 78028020. Its totient is φ = 21797952.

The previous prime is 44091661. The next prime is 44091689. The reversal of 44091668 is 86619044.

It can be written as a sum of positive squares in 2 ways, for example, as 21548164 + 22543504 = 4642^2 + 4748^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44091661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61571 + ... + 62282.

It is an arithmetic number, because the mean of its divisors is an integer number (6502335).

Almost surely, 2^44091668 is an apocalyptic number.

It is an amenable number.

44091668 is a deficient number, since it is larger than the sum of its proper divisors (33936352).

44091668 is a wasteful number, since it uses less digits than its factorization.

44091668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123946 (or 123944 counting only the distinct ones).

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

The square root of 44091668 is about 6640.1557210656. The cubic root of 44091668 is about 353.2798301172.

The spelling of 44091668 in words is "forty-four million, ninety-one thousand, six hundred sixty-eight".