18708704 has 60 divisors (see below), whose sum is σ = 44725464. Its totient is φ = 7546368.

The previous prime is 18708691. The next prime is 18708707. The reversal of 18708704 is 40780781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18708707) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1100504 + ... + 1100520.

Almost surely, 2^18708704 is an apocalyptic number.

18708704 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18708704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22362732).

18708704 is an abundant number, since it is smaller than the sum of its proper divisors (26016760).

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

18708704 is an frugal number, since it uses more digits than its factorization.

18708704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 26 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 35.

The square root of 18708704 is about 4325.3559391107. The cubic root of 18708704 is about 265.4694609405.

The spelling of 18708704 in words is "eighteen million, seven hundred eight thousand, seven hundred four".