18245969 has 8 divisors (see below), whose sum is σ = 21759360. Its totient is φ = 14959296.

The previous prime is 18245957. The next prime is 18245987. The reversal of 18245969 is 96954281.

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 18245969 - 2¹⁶ = 18180433 is a prime.

It is a super-2 number, since 2×18245969² = 665830769497922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18245999) 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 7 ways as a sum of consecutive naturals, for example, 56504 + ... + 56825.

It is an arithmetic number, because the mean of its divisors is an integer number (2719920).

Almost surely, 2^18245969 is an apocalyptic number.

It is an amenable number.

18245969 is a deficient number, since it is larger than the sum of its proper divisors (3513391).

18245969 is a wasteful number, since it uses less digits than its factorization.

18245969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113359.

The product of its digits is 155520, while the sum is 44.

The square root of 18245969 is about 4271.5300537395. The cubic root of 18245969 is about 263.2624857032.

The spelling of 18245969 in words is "eighteen million, two hundred forty-five thousand, nine hundred sixty-nine".