34391938 has 16 divisors (see below), whose sum is σ = 62061120. Its totient is φ = 13963536.

The previous prime is 34391933. The next prime is 34391947. The reversal of 34391938 is 83919343.

It is a self number, because there is not a number n which added to its sum of digits gives 34391938.

It is not an unprimeable number, because it can be changed into a prime (34391933) 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, 64381 + ... + 64912.

It is an arithmetic number, because the mean of its divisors is an integer number (3878820).

Almost surely, 2^34391938 is an apocalyptic number.

34391938 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

34391938 is a deficient number, since it is larger than the sum of its proper divisors (27669182).

34391938 is a wasteful number, since it uses less digits than its factorization.

34391938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129321.

The product of its digits is 69984, while the sum is 40.

The square root of 34391938 is about 5864.4639993779. The cubic root of 34391938 is about 325.2012575932.

The spelling of 34391938 in words is "thirty-four million, three hundred ninety-one thousand, nine hundred thirty-eight".