20782132 has 12 divisors (see below), whose sum is σ = 41564320. Its totient is φ = 8906616.

The previous prime is 20782117. The next prime is 20782141. The reversal of 20782132 is 23128702.

20782132 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 20782097 and 20782106.

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, 371082 + ... + 371137.

Almost surely, 2^20782132 is an apocalyptic number.

It is an amenable number.

20782132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20782132 is a wasteful number, since it uses less digits than its factorization.

20782132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742230 (or 742228 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 20782132 is about 4558.7423704351. The cubic root of 20782132 is about 274.9350017183.

The spelling of 20782132 in words is "twenty million, seven hundred eighty-two thousand, one hundred thirty-two".