18696100 has 72 divisors (see below), whose sum is σ = 43275008. Its totient is φ = 6998400.

The previous prime is 18696089. The next prime is 18696101. The reversal of 18696100 is 169681.

It is a happy number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (18696101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114619 + ... + 114781.

Almost surely, 2^18696100 is an apocalyptic number.

18696100 is a gapful number since it is divisible by the number (10) 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 18696100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21637504).

18696100 is an abundant number, since it is smaller than the sum of its proper divisors (24578908).

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

18696100 is a wasteful number, since it uses less digits than its factorization.

18696100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 18696100 is about 4323.8987037164. The cubic root of 18696100 is about 265.4098322109.

The spelling of 18696100 in words is "eighteen million, six hundred ninety-six thousand, one hundred".