44091965 has 8 divisors (see below), whose sum is σ = 56022840. Its totient is φ = 33198592.

The previous prime is 44091947. The next prime is 44091973. The reversal of 44091965 is 56919044.

It can be written as a sum of positive squares in 4 ways, for example, as 2244004 + 41847961 = 1498^2 + 6469^2 .

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 44091965 - 2¹⁰ = 44090941 is a prime.

It is a super-2 number, since 2×44091965² = 3888202755122450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259280 + ... + 259449.

It is an arithmetic number, because the mean of its divisors is an integer number (7002855).

Almost surely, 2^44091965 is an apocalyptic number.

It is an amenable number.

44091965 is a deficient number, since it is larger than the sum of its proper divisors (11930875).

44091965 is a wasteful number, since it uses less digits than its factorization.

44091965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518751.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 44091965 is about 6640.1780849613. The cubic root of 44091965 is about 353.2806233424.

The spelling of 44091965 in words is "forty-four million, ninety-one thousand, nine hundred sixty-five".