20984432 has 20 divisors (see below), whose sum is σ = 46465776. Its totient is φ = 8993280.

The previous prime is 20984423. The next prime is 20984437. The reversal of 20984432 is 23448902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20984437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93569 + ... + 93792.

Almost surely, 2^20984432 is an apocalyptic number.

It is an amenable number.

20984432 is an abundant number, since it is smaller than the sum of its proper divisors (25481344).

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

20984432 is a wasteful number, since it uses less digits than its factorization.

20984432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187376 (or 187370 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 20984432 is about 4580.8767719728. The cubic root of 20984432 is about 275.8242247022.

The spelling of 20984432 in words is "twenty million, nine hundred eighty-four thousand, four hundred thirty-two".