20002132 has 12 divisors (see below), whose sum is σ = 37062900. Its totient is φ = 9412736.

The previous prime is 20002123. The next prime is 20002133. The reversal of 20002132 is 23120002.

It can be written as a sum of positive squares in 2 ways, for example, as 5363856 + 14638276 = 2316^2 + 3826^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147007 + ... + 147142.

It is an arithmetic number, because the mean of its divisors is an integer number (3088575).

Almost surely, 2^20002132 is an apocalyptic number.

It is an amenable number.

20002132 is a deficient number, since it is larger than the sum of its proper divisors (17060768).

20002132 is a wasteful number, since it uses less digits than its factorization.

20002132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294170 (or 294168 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 20002132 is about 4472.3743134939. The cubic root of 20002132 is about 271.4514065474.

Adding to 20002132 its reverse (23120002), we get a palindrome (43122134).

The spelling of 20002132 in words is "twenty million, two thousand, one hundred thirty-two".