18969336 has 64 divisors (see below), whose sum is σ = 53719200. Its totient is φ = 6200064.

The previous prime is 18969323. The next prime is 18969359. The reversal of 18969336 is 63396981.

It is a super-3 number, since 3×18969336³ (a number of 23 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 18969291 and 18969300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10620 + ... + 12276.

Almost surely, 2^18969336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18969336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26859600).

18969336 is an abundant number, since it is smaller than the sum of its proper divisors (34749864).

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

18969336 is a wasteful number, since it uses less digits than its factorization.

18969336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725 (or 1715 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 18969336 is about 4355.3801211835. The cubic root of 18969336 is about 266.6965369318.

The spelling of 18969336 in words is "eighteen million, nine hundred sixty-nine thousand, three hundred thirty-six".