43888138 has 32 divisors (see below), whose sum is σ = 79833600. Its totient is φ = 17676144.

The previous prime is 43888133. The next prime is 43888151. The reversal of 43888138 is 83188834.

It is a happy number.

43888138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 43888094 and 43888103.

It is not an unprimeable number, because it can be changed into a prime (43888133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36381 + ... + 37567.

It is an arithmetic number, because the mean of its divisors is an integer number (2494800).

Almost surely, 2^43888138 is an apocalyptic number.

43888138 is a deficient number, since it is larger than the sum of its proper divisors (35945462).

43888138 is a wasteful number, since it uses less digits than its factorization.

43888138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1354.

The product of its digits is 147456, while the sum is 43.

The square root of 43888138 is about 6624.8122992278. The cubic root of 43888138 is about 352.7354040153.

The spelling of 43888138 in words is "forty-three million, eight hundred eighty-eight thousand, one hundred thirty-eight".