20682384 has 20 divisors (see below), whose sum is σ = 53429616. Its totient is φ = 6894112.

The previous prime is 20682373. The next prime is 20682407. The reversal of 20682384 is 48328602.

It is a super-2 number, since 2×20682384² = 855522015846912, which contains 22 as substring.

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, 215394 + ... + 215489.

Almost surely, 2^20682384 is an apocalyptic number.

20682384 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20682384 is an abundant number, since it is smaller than the sum of its proper divisors (32747232).

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

20682384 is a wasteful number, since it uses less digits than its factorization.

20682384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430894 (or 430888 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 20682384 is about 4547.7889133072. The cubic root of 20682384 is about 274.4944275762.

The spelling of 20682384 in words is "twenty million, six hundred eighty-two thousand, three hundred eighty-four".