18814608 has 30 divisors (see below), whose sum is σ = 52655174. Its totient is φ = 6271488.

The previous prime is 18814589. The next prime is 18814619. The reversal of 18814608 is 80641881.

It can be written as a sum of positive squares in only one way, i.e., 17040384 + 1774224 = 4128^2 + 1332^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 5 ways as a sum of consecutive naturals, for example, 65185 + ... + 65472.

Almost surely, 2^18814608 is an apocalyptic number.

18814608 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18814608 is an abundant number, since it is smaller than the sum of its proper divisors (33840566).

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

18814608 is a wasteful number, since it uses less digits than its factorization.

18814608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130671 (or 130662 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 18814608 is about 4337.5808926175. The cubic root of 18814608 is about 265.9694313526.

The spelling of 18814608 in words is "eighteen million, eight hundred fourteen thousand, six hundred eight".