20823032 has 8 divisors (see below), whose sum is σ = 39043200. Its totient is φ = 10411512.

The previous prime is 20823029. The next prime is 20823059. The reversal of 20823032 is 23032802.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 20822995 and 20823013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1301432 + ... + 1301447.

It is an arithmetic number, because the mean of its divisors is an integer number (4880400).

Almost surely, 2^20823032 is an apocalyptic number.

It is an amenable number.

20823032 is a deficient number, since it is larger than the sum of its proper divisors (18220168).

20823032 is a wasteful number, since it uses less digits than its factorization.

20823032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602885 (or 2602881 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20823032 is about 4563.2260518190. The cubic root of 20823032 is about 275.1152442598.

Adding to 20823032 its reverse (23032802), we get a palindrome (43855834).

The spelling of 20823032 in words is "twenty million, eight hundred twenty-three thousand, thirty-two".