20443324 has 12 divisors (see below), whose sum is σ = 39028248. Its totient is φ = 9292400.

The previous prime is 20443301. The next prime is 20443331. The reversal of 20443324 is 42334402.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 20443295 and 20443304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232267 + ... + 232354.

It is an arithmetic number, because the mean of its divisors is an integer number (3252354).

Almost surely, 2^20443324 is an apocalyptic number.

It is an amenable number.

20443324 is a deficient number, since it is larger than the sum of its proper divisors (18584924).

20443324 is a wasteful number, since it uses less digits than its factorization.

20443324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464636 (or 464634 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 20443324 is about 4521.4294199954. The cubic root of 20443324 is about 273.4327333634.

Adding to 20443324 its reverse (42334402), we get a palindrome (62777726).

It can be divided in two parts, 20 and 443324, that added together give a palindrome (443344).

The spelling of 20443324 in words is "twenty million, four hundred forty-three thousand, three hundred twenty-four".