44091091 has 8 divisors (see below), whose sum is σ = 48215664. Its totient is φ = 39985920.

The previous prime is 44091067. The next prime is 44091097. The reversal of 44091091 is 19019044.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44091091 - 2¹¹ = 44089043 is a prime.

It is a super-3 number, since 3×44091091³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44091097) 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, 135 + ... + 9391.

It is an arithmetic number, because the mean of its divisors is an integer number (6026958).

Almost surely, 2^44091091 is an apocalyptic number.

44091091 is a deficient number, since it is larger than the sum of its proper divisors (4124573).

44091091 is a wasteful number, since it uses less digits than its factorization.

44091091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9701.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 44091091 is about 6640.1122731472. The cubic root of 44091091 is about 353.2782890599.

The spelling of 44091091 in words is "forty-four million, ninety-one thousand, ninety-one".