43888113 has 12 divisors (see below), whose sum is σ = 63669060. Its totient is φ = 29131776.

The previous prime is 43888093. The next prime is 43888127. The reversal of 43888113 is 31188834.

It can be written as a sum of positive squares in 2 ways, for example, as 16136289 + 27751824 = 4017^2 + 5268^2 .

It is not a de Polignac number, because 43888113 - 2¹³ = 43879921 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (43888133) 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, 8368 + ... + 12561.

It is an arithmetic number, because the mean of its divisors is an integer number (5305755).

Almost surely, 2^43888113 is an apocalyptic number.

It is an amenable number.

43888113 is a deficient number, since it is larger than the sum of its proper divisors (19780947).

43888113 is a wasteful number, since it uses less digits than its factorization.

43888113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21168 (or 21165 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 43888113 is about 6624.8104123816. The cubic root of 43888113 is about 352.7353370391.

The spelling of 43888113 in words is "forty-three million, eight hundred eighty-eight thousand, one hundred thirteen".