20323432 has 32 divisors (see below), whose sum is σ = 41747400. Its totient is φ = 9232384.

The previous prime is 20323427. The next prime is 20323441. The reversal of 20323432 is 23432302.

It can be written as a sum of positive squares in 4 ways, for example, as 19766916 + 556516 = 4446^2 + 746^2 .

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 7 ways as a sum of consecutive naturals, for example, 1368 + ... + 6520.

Almost surely, 2^20323432 is an apocalyptic number.

It is an amenable number.

20323432 is an abundant number, since it is smaller than the sum of its proper divisors (21423968).

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

20323432 is a wasteful number, since it uses less digits than its factorization.

20323432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5205 (or 5201 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 20323432 is about 4508.1517277039. The cubic root of 20323432 is about 272.8971601180.

Adding to 20323432 its reverse (23432302), we get a palindrome (43755734).

The spelling of 20323432 in words is "twenty million, three hundred twenty-three thousand, four hundred thirty-two".