18452418 has 32 divisors (see below), whose sum is σ = 38803776. Its totient is φ = 5842368.

The previous prime is 18452411. The next prime is 18452431. The reversal of 18452418 is 81425481.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18452411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8580 + ... + 10512.

It is an arithmetic number, because the mean of its divisors is an integer number (1212618).

Almost surely, 2^18452418 is an apocalyptic number.

18452418 is an abundant number, since it is smaller than the sum of its proper divisors (20351358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18452418 is a wasteful number, since it uses less digits than its factorization.

18452418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018.

The product of its digits is 10240, while the sum is 33.

The square root of 18452418 is about 4295.6277771706. The cubic root of 18452418 is about 264.2516826193.

Adding to 18452418 its reverse (81425481), we get a palindrome (99877899).

The spelling of 18452418 in words is "eighteen million, four hundred fifty-two thousand, four hundred eighteen".