20324242 has 4 divisors (see below), whose sum is σ = 30486366. Its totient is φ = 10162120.

The previous prime is 20324237. The next prime is 20324267. The reversal of 20324242 is 24242302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16556761 + 3767481 = 4069^2 + 1941^2 .

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 as a sum of consecutive naturals, namely, 5081059 + ... + 5081062.

Almost surely, 2^20324242 is an apocalyptic number.

20324242 is a deficient number, since it is larger than the sum of its proper divisors (10162124).

20324242 is a wasteful number, since it uses less digits than its factorization.

20324242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10162123.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 20324242 is about 4508.2415640691. The cubic root of 20324242 is about 272.9007855517.

Adding to 20324242 its reverse (24242302), we get a palindrome (44566544).

The spelling of 20324242 in words is "twenty million, three hundred twenty-four thousand, two hundred forty-two".