18693148 has 6 divisors (see below), whose sum is σ = 32713016. Its totient is φ = 9346572.

The previous prime is 18693127. The next prime is 18693151. The reversal of 18693148 is 84139681.

It is a self number, because there is not a number n which added to its sum of digits gives 18693148.

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, 2336640 + ... + 2336647.

Almost surely, 2^18693148 is an apocalyptic number.

It is an amenable number.

18693148 is a deficient number, since it is larger than the sum of its proper divisors (14019868).

18693148 is a wasteful number, since it uses less digits than its factorization.

18693148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4673291 (or 4673289 counting only the distinct ones).

The product of its digits is 41472, while the sum is 40.

The square root of 18693148 is about 4323.5573316425. The cubic root of 18693148 is about 265.3958626118.

The spelling of 18693148 in words is "eighteen million, six hundred ninety-three thousand, one hundred forty-eight".