20303224 has 16 divisors (see below), whose sum is σ = 38954520. Its totient is φ = 9915360.

The previous prime is 20303203. The next prime is 20303249. The reversal of 20303224 is 42230302.

It is a junction number, because it is equal to n+sod(n) for n = 20303198 and 20303207.

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, 29167 + ... + 29854.

Almost surely, 2^20303224 is an apocalyptic number.

It is an amenable number.

20303224 is a deficient number, since it is larger than the sum of its proper divisors (18651296).

20303224 is a wasteful number, since it uses less digits than its factorization.

20303224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59070 (or 59066 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 20303224 is about 4505.9098970130. The cubic root of 20303224 is about 272.8066810655.

Adding to 20303224 its reverse (42230302), we get a palindrome (62533526).

The spelling of 20303224 in words is "twenty million, three hundred three thousand, two hundred twenty-four".