18034399 has 8 divisors (see below), whose sum is σ = 19133280. Its totient is φ = 16939776.

The previous prime is 18034397. The next prime is 18034403. The reversal of 18034399 is 99343081.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18034399 - 2¹ = 18034397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18034391) 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, 13347 + ... + 14635.

It is an arithmetic number, because the mean of its divisors is an integer number (2391660).

Almost surely, 2^18034399 is an apocalyptic number.

18034399 is a deficient number, since it is larger than the sum of its proper divisors (1098881).

18034399 is a wasteful number, since it uses less digits than its factorization.

18034399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 18034399 is about 4246.6927131593. The cubic root of 18034399 is about 262.2409792659.

It can be divided in two parts, 1803 and 4399, that multiplied together give a palindrome (7931397).

The spelling of 18034399 in words is "eighteen million, thirty-four thousand, three hundred ninety-nine".