18514408 has 16 divisors (see below), whose sum is σ = 37870560. Its totient is φ = 8415600.

The previous prime is 18514399. The next prime is 18514423. The reversal of 18514408 is 80441581.

It is a self number, because there is not a number n which added to its sum of digits gives 18514408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105108 + ... + 105283.

It is an arithmetic number, because the mean of its divisors is an integer number (2366910).

Almost surely, 2^18514408 is an apocalyptic number.

It is an amenable number.

18514408 is an abundant number, since it is smaller than the sum of its proper divisors (19356152).

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

18514408 is a wasteful number, since it uses less digits than its factorization.

18514408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210408 (or 210404 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 18514408 is about 4302.8372035205. The cubic root of 18514408 is about 264.5472654219.

Adding to 18514408 its reverse (80441581), we get a palindrome (98955989).

The spelling of 18514408 in words is "eighteen million, five hundred fourteen thousand, four hundred eight".