44200091 has 12 divisors (see below), whose sum is σ = 49036680. Its totient is φ = 39798720.

The previous prime is 44200067. The next prime is 44200103. The reversal of 44200091 is 19000244.

It is a de Polignac number, because none of the positive numbers 2^k-44200091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44200021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3740 + ... + 10118.

It is an arithmetic number, because the mean of its divisors is an integer number (4086390).

Almost surely, 2^44200091 is an apocalyptic number.

44200091 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

44200091 is a deficient number, since it is larger than the sum of its proper divisors (4836589).

44200091 is a wasteful number, since it uses less digits than its factorization.

44200091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6446 (or 6433 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 44200091 is about 6648.3148992809. The cubic root of 44200091 is about 353.5691690247.

The spelling of 44200091 in words is "forty-four million, two hundred thousand, ninety-one".