34389018 has 24 divisors (see below), whose sum is σ = 74681568. Its totient is φ = 11436552.

The previous prime is 34388999. The next prime is 34389049. The reversal of 34389018 is 81098343.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 6805 + ... + 10727.

It is an arithmetic number, because the mean of its divisors is an integer number (3111732).

Almost surely, 2^34389018 is an apocalyptic number.

34389018 is an abundant number, since it is smaller than the sum of its proper divisors (40292550).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34389018 is a wasteful number, since it uses less digits than its factorization.

34389018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4418 (or 4415 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 34389018 is about 5864.2150369849. The cubic root of 34389018 is about 325.1920537448.

The spelling of 34389018 in words is "thirty-four million, three hundred eighty-nine thousand, eighteen".