18669036 has 24 divisors (see below), whose sum is σ = 43853824. Its totient is φ = 6181200.

The previous prime is 18669029. The next prime is 18669047. The reversal of 18669036 is 63096681.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18668985 and 18669003.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3340 + ... + 6963.

Almost surely, 2^18669036 is an apocalyptic number.

It is an amenable number.

18669036 is an abundant number, since it is smaller than the sum of its proper divisors (25184788).

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

18669036 is a wasteful number, since it uses less digits than its factorization.

18669036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10461 (or 10459 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 18669036 is about 4320.7679872911. The cubic root of 18669036 is about 265.2817035193.

The spelling of 18669036 in words is "eighteen million, six hundred sixty-nine thousand, thirty-six".