34218399 has 16 divisors (see below), whose sum is σ = 48813408. Its totient is φ = 21245952.

The previous prime is 34218367. The next prime is 34218413. The reversal of 34218399 is 99381243.

It is not a de Polignac number, because 34218399 - 2⁵ = 34218367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34218329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1489 + ... + 8405.

It is an arithmetic number, because the mean of its divisors is an integer number (3050838).

Almost surely, 2^34218399 is an apocalyptic number.

34218399 is a deficient number, since it is larger than the sum of its proper divisors (14595009).

34218399 is a wasteful number, since it uses less digits than its factorization.

34218399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7034.

The product of its digits is 46656, while the sum is 39.

The square root of 34218399 is about 5849.6494766781. The cubic root of 34218399 is about 324.6533550548.

The spelling of 34218399 in words is "thirty-four million, two hundred eighteen thousand, three hundred ninety-nine".