20386684 has 12 divisors (see below), whose sum is σ = 36045184. Its totient is φ = 10088064.

The previous prime is 20386679. The next prime is 20386697. The reversal of 20386684 is 48668302.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25884 + ... + 26659.

Almost surely, 2^20386684 is an apocalyptic number.

It is an amenable number.

20386684 is a deficient number, since it is larger than the sum of its proper divisors (15658500).

20386684 is a wasteful number, since it uses less digits than its factorization.

20386684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52644 (or 52642 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 20386684 is about 4515.1615696451. The cubic root of 20386684 is about 273.1799767671.

The spelling of 20386684 in words is "twenty million, three hundred eighty-six thousand, six hundred eighty-four".