18274069 has 8 divisors (see below), whose sum is σ = 20422080. Its totient is φ = 16207200.

The previous prime is 18274063. The next prime is 18274073. The reversal of 18274069 is 96047281.

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 18274069 - 2⁵ = 18274037 is a prime.

It is a super-2 number, since 2×18274069² = 667883195633522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18274063) 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 7 ways as a sum of consecutive naturals, for example, 19809 + ... + 20710.

It is an arithmetic number, because the mean of its divisors is an integer number (2552760).

Almost surely, 2^18274069 is an apocalyptic number.

It is an amenable number.

18274069 is a deficient number, since it is larger than the sum of its proper divisors (2148011).

18274069 is a wasteful number, since it uses less digits than its factorization.

18274069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40571.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 18274069 is about 4274.8180078221. The cubic root of 18274069 is about 263.3975636019.

The spelling of 18274069 in words is "eighteen million, two hundred seventy-four thousand, sixty-nine".