20932 has 6 divisors (see below), whose sum is σ = 36638. Its totient is φ = 10464.

The previous prime is 20929. The next prime is 20939. The reversal of 20932 is 23902.

It can be written as a sum of positive squares in only one way, i.e., 20736 + 196 = 144^2 + 14^2 .

It is a d-powerful number, because it can be written as 2³ + 0 + 9³ + 3⁹ + 2⁹ .

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (20939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2613 + ... + 2620.

2²⁰⁹³² is an apocalyptic number.

It is an amenable number.

20932 is a deficient number, since it is larger than the sum of its proper divisors (15706).

20932 is a wasteful number, since it uses less digits than its factorization.

20932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5237 (or 5235 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 20932 is about 144.6789549313. The cubic root of 20932 is about 27.5594306995.

It can be divided in two parts, 2093 and 2, that multiplied together give a triangular number (4186 = T₉₁).

The spelling of 20932 in words is "twenty thousand, nine hundred thirty-two".