20024432 has 10 divisors (see below), whose sum is σ = 38797368. Its totient is φ = 10012208.

The previous prime is 20024339. The next prime is 20024483. The reversal of 20024432 is 23442002.

It is a self number, because there is not a number n which added to its sum of digits gives 20024432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625748 + ... + 625779.

Almost surely, 2^20024432 is an apocalyptic number.

It is an amenable number.

20024432 is a deficient number, since it is larger than the sum of its proper divisors (18772936).

20024432 is a wasteful number, since it uses less digits than its factorization.

20024432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251535 (or 1251529 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 20024432 is about 4474.8667019253. The cubic root of 20024432 is about 271.5522477671.

Adding to 20024432 its reverse (23442002), we get a palindrome (43466434).

The spelling of 20024432 in words is "twenty million, twenty-four thousand, four hundred thirty-two".