20503324 has 12 divisors (see below), whose sum is σ = 36313704. Its totient is φ = 10127984.

The previous prime is 20503313. The next prime is 20503333. The reversal of 20503324 is 42330502.

It is a congruent number.

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, 30547 + ... + 31210.

It is an arithmetic number, because the mean of its divisors is an integer number (3026142).

Almost surely, 2^20503324 is an apocalyptic number.

It is an amenable number.

20503324 is a deficient number, since it is larger than the sum of its proper divisors (15810380).

20503324 is a wasteful number, since it uses less digits than its factorization.

20503324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61844 (or 61842 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 20503324 is about 4528.0596285826. The cubic root of 20503324 is about 273.6999752909.

Adding to 20503324 its reverse (42330502), we get a palindrome (62833826).

The spelling of 20503324 in words is "twenty million, five hundred three thousand, three hundred twenty-four".