18498966 has 8 divisors (see below), whose sum is σ = 36997944. Its totient is φ = 6166320.

The previous prime is 18498959. The next prime is 18499007. The reversal of 18498966 is 66989481.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

18498966 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1541575 + ... + 1541586.

It is an arithmetic number, because the mean of its divisors is an integer number (4624743).

Almost surely, 2^18498966 is an apocalyptic number.

18498966 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

18498966 is a wasteful number, since it uses less digits than its factorization.

18498966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3083166.

The product of its digits is 746496, while the sum is 51.

The square root of 18498966 is about 4301.0424317833. The cubic root of 18498966 is about 264.4736961394.

The spelling of 18498966 in words is "eighteen million, four hundred ninety-eight thousand, nine hundred sixty-six".