18916002 has 48 divisors (see below), whose sum is σ = 49600512. Its totient is φ = 5086080.

The previous prime is 18915989. The next prime is 18916031. The reversal of 18916002 is 20061981.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2274 + ... + 6557.

It is an arithmetic number, because the mean of its divisors is an integer number (1033344).

Almost surely, 2^18916002 is an apocalyptic number.

18916002 is an abundant number, since it is smaller than the sum of its proper divisors (30684510).

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

18916002 is a wasteful number, since it uses less digits than its factorization.

18916002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8863 (or 8860 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 18916002 is about 4349.2530393161. The cubic root of 18916002 is about 266.4463551886.

Adding to 18916002 its reverse (20061981), we get a palindrome (38977983).

The spelling of 18916002 in words is "eighteen million, nine hundred sixteen thousand, two".