18472369 has 8 divisors (see below), whose sum is σ = 19069920. Its totient is φ = 17884416.

The previous prime is 18472367. The next prime is 18472393. The reversal of 18472369 is 96327481.

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 18472369 - 2¹ = 18472367 is a prime.

It is a super-2 number, since 2×18472369² = 682456832944322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18472367) 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, 1617 + ... + 6289.

It is an arithmetic number, because the mean of its divisors is an integer number (2383740).

Almost surely, 2^18472369 is an apocalyptic number.

It is an amenable number.

18472369 is a deficient number, since it is larger than the sum of its proper divisors (597551).

18472369 is an equidigital number, since it uses as much as digits as its factorization.

18472369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4799.

The product of its digits is 72576, while the sum is 40.

The square root of 18472369 is about 4297.9493947696. The cubic root of 18472369 is about 264.3468857949.

The spelling of 18472369 in words is "eighteen million, four hundred seventy-two thousand, three hundred sixty-nine".