20338684 has 6 divisors (see below), whose sum is σ = 35592704. Its totient is φ = 10169340.

The previous prime is 20338663. The next prime is 20338709. The reversal of 20338684 is 48683302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2542332 + ... + 2542339.

Almost surely, 2^20338684 is an apocalyptic number.

It is an amenable number.

20338684 is a deficient number, since it is larger than the sum of its proper divisors (15254020).

20338684 is a wasteful number, since it uses less digits than its factorization.

20338684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5084675 (or 5084673 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 20338684 is about 4509.8430127888. The cubic root of 20338684 is about 272.9654095279.

The spelling of 20338684 in words is "twenty million, three hundred thirty-eight thousand, six hundred eighty-four".