18414369 has 12 divisors (see below), whose sum is σ = 26640276. Its totient is φ = 12256992.

The previous prime is 18414353. The next prime is 18414377. The reversal of 18414369 is 96341481.

It can be written as a sum of positive squares in 2 ways, for example, as 11189025 + 7225344 = 3345^2 + 2688^2 .

It is not a de Polignac number, because 18414369 - 2⁴ = 18414353 is a prime.

It is a super-2 number, since 2×18414369² = 678177971336322, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18414169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6727 + ... + 9059.

It is an arithmetic number, because the mean of its divisors is an integer number (2220023).

Almost surely, 2^18414369 is an apocalyptic number.

It is an amenable number.

18414369 is a deficient number, since it is larger than the sum of its proper divisors (8225907).

18414369 is a wasteful number, since it uses less digits than its factorization.

18414369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3216 (or 3213 counting only the distinct ones).

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

The square root of 18414369 is about 4291.1966862403. The cubic root of 18414369 is about 264.0699281012.

The spelling of 18414369 in words is "eighteen million, four hundred fourteen thousand, three hundred sixty-nine".