18041414 has 4 divisors (see below), whose sum is σ = 27062124. Its totient is φ = 9020706.

The previous prime is 18041383. The next prime is 18041449. The reversal of 18041414 is 41414081.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 18041414.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4510352 + ... + 4510355.

It is an arithmetic number, because the mean of its divisors is an integer number (6765531).

Almost surely, 2^18041414 is an apocalyptic number.

18041414 is a deficient number, since it is larger than the sum of its proper divisors (9020710).

18041414 is an equidigital number, since it uses as much as digits as its factorization.

18041414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9020709.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 18041414 is about 4247.5185697063. The cubic root of 18041414 is about 262.2749769241.

Adding to 18041414 its reverse (41414081), we get a palindrome (59455495).

The spelling of 18041414 in words is "eighteen million, forty-one thousand, four hundred fourteen".