18708494 has 24 divisors (see below), whose sum is σ = 32797800. Its totient is φ = 7980336.

The previous prime is 18708493. The next prime is 18708527. The reversal of 18708494 is 49480781.

It is a happy number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18708493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33929 + ... + 34475.

It is an arithmetic number, because the mean of its divisors is an integer number (1366575).

Almost surely, 2^18708494 is an apocalyptic number.

18708494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18708494 is a deficient number, since it is larger than the sum of its proper divisors (14089306).

18708494 is a wasteful number, since it uses less digits than its factorization.

18708494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912 (or 905 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 18708494 is about 4325.3316635837. The cubic root of 18708494 is about 265.4684676632.

The spelling of 18708494 in words is "eighteen million, seven hundred eight thousand, four hundred ninety-four".