20823304 has 32 divisors (see below), whose sum is σ = 40547520. Its totient is φ = 10017216.

The previous prime is 20823287. The next prime is 20823307. The reversal of 20823304 is 40332802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20823307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30147 + ... + 30829.

It is an arithmetic number, because the mean of its divisors is an integer number (1267110).

Almost surely, 2^20823304 is an apocalyptic number.

It is an amenable number.

20823304 is a deficient number, since it is larger than the sum of its proper divisors (19724216).

20823304 is a wasteful number, since it uses less digits than its factorization.

20823304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829 (or 825 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 20823304 is about 4563.2558551981. The cubic root of 20823304 is about 275.1164421485.

The spelling of 20823304 in words is "twenty million, eight hundred twenty-three thousand, three hundred four".