20867132 has 36 divisors (see below), whose sum is σ = 43127448. Its totient is φ = 8709600.

The previous prime is 20867131. The next prime is 20867173. The reversal of 20867132 is 23176802.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20867095 and 20867104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20867131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109157 + ... + 109347.

Almost surely, 2^20867132 is an apocalyptic number.

20867132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20867132 is an abundant number, since it is smaller than the sum of its proper divisors (22260316).

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

20867132 is a wasteful number, since it uses less digits than its factorization.

20867132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 20867132 is about 4568.0556038647. The cubic root of 20867132 is about 275.3093246632.

The spelling of 20867132 in words is "twenty million, eight hundred sixty-seven thousand, one hundred thirty-two".