20023132 has 6 divisors (see below), whose sum is σ = 35040488. Its totient is φ = 10011564.

The previous prime is 20023121. The next prime is 20023139. The reversal of 20023132 is 23132002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2502888 + ... + 2502895.

Almost surely, 2^20023132 is an apocalyptic number.

It is an amenable number.

20023132 is a deficient number, since it is larger than the sum of its proper divisors (15017356).

20023132 is a wasteful number, since it uses less digits than its factorization.

20023132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005787 (or 5005785 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 20023132 is about 4474.7214438443. The cubic root of 20023132 is about 271.5463711866.

Adding to 20023132 its reverse (23132002), we get a palindrome (43155134).

It can be divided in two parts, 200 and 23132, that added together give a palindrome (23332).

The spelling of 20023132 in words is "twenty million, twenty-three thousand, one hundred thirty-two".