20243732 has 12 divisors (see below), whose sum is σ = 35471520. Its totient is φ = 10109016.

The previous prime is 20243693. The next prime is 20243747. The reversal of 20243732 is 23734202.

It is a junction number, because it is equal to n+sod(n) for n = 20243698 and 20243707.

It is a congruent number.

It is an unprimeable number.

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, 923 + ... + 6429.

It is an arithmetic number, because the mean of its divisors is an integer number (2955960).

Almost surely, 2^20243732 is an apocalyptic number.

It is an amenable number.

20243732 is a deficient number, since it is larger than the sum of its proper divisors (15227788).

20243732 is a wasteful number, since it uses less digits than its factorization.

20243732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6430 (or 6428 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 20243732 is about 4499.3035016545. The cubic root of 20243732 is about 272.5399632773.

Adding to 20243732 its reverse (23734202), we get a palindrome (43977934).

It can be divided in two parts, 202 and 43732, that added together give a palindrome (43934).

The spelling of 20243732 in words is "twenty million, two hundred forty-three thousand, seven hundred thirty-two".