20683932 has 48 divisors (see below), whose sum is σ = 51461760. Its totient is φ = 6447168.

The previous prime is 20683921. The next prime is 20683937. The reversal of 20683932 is 23938602.

It is a junction number, because it is equal to n+sod(n) for n = 20683893 and 20683902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20683937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18378 + ... + 19470.

It is an arithmetic number, because the mean of its divisors is an integer number (1072120).

Almost surely, 2^20683932 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 20683932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25730880).

20683932 is an abundant number, since it is smaller than the sum of its proper divisors (30777828).

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

20683932 is a wasteful number, since it uses less digits than its factorization.

20683932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202 (or 1200 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 20683932 is about 4547.9591027185. The cubic root of 20683932 is about 274.5012757032.

The spelling of 20683932 in words is "twenty million, six hundred eighty-three thousand, nine hundred thirty-two".