18748146 has 8 divisors (see below), whose sum is σ = 37496304. Its totient is φ = 6249380.

The previous prime is 18748139. The next prime is 18748153. The reversal of 18748146 is 64184781.

It is an interprime number because it is at equal distance from previous prime (18748139) and next prime (18748153).

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

18748146 is an admirable number.

It is a Curzon number.

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, 1562340 + ... + 1562351.

It is an arithmetic number, because the mean of its divisors is an integer number (4687038).

Almost surely, 2^18748146 is an apocalyptic number.

18748146 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.

18748146 is a wasteful number, since it uses less digits than its factorization.

18748146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3124696.

The product of its digits is 43008, while the sum is 39.

The square root of 18748146 is about 4329.9129321500. The cubic root of 18748146 is about 265.6558857004.

The spelling of 18748146 in words is "eighteen million, seven hundred forty-eight thousand, one hundred forty-six".