20209324 has 12 divisors (see below), whose sum is σ = 36033984. Its totient is φ = 9913904.

The previous prime is 20209297. The next prime is 20209337. The reversal of 20209324 is 42390202.

It is a junction number, because it is equal to n+sod(n) for n = 20209295 and 20209304.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 47452 + ... + 47875.

It is an arithmetic number, because the mean of its divisors is an integer number (3002832).

Almost surely, 2^20209324 is an apocalyptic number.

It is an amenable number.

20209324 is a deficient number, since it is larger than the sum of its proper divisors (15824660).

20209324 is a wasteful number, since it uses less digits than its factorization.

20209324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95384 (or 95382 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 20209324 is about 4495.4781725641. The cubic root of 20209324 is about 272.3854648702.

Adding to 20209324 its reverse (42390202), we get a palindrome (62599526).

The spelling of 20209324 in words is "twenty million, two hundred nine thousand, three hundred twenty-four".