20324266 has 4 divisors (see below), whose sum is σ = 30486402. Its totient is φ = 10162132.

The previous prime is 20324237. The next prime is 20324267. The reversal of 20324266 is 66242302.

It is a happy number.

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., 20295025 + 29241 = 4505^2 + 171^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20324266.

It is not an unprimeable number, because it can be changed into a prime (20324267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5081065 + ... + 5081068.

Almost surely, 2^20324266 is an apocalyptic number.

20324266 is a deficient number, since it is larger than the sum of its proper divisors (10162136).

20324266 is a wasteful number, since it uses less digits than its factorization.

20324266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10162135.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 20324266 is about 4508.2442258600. The cubic root of 20324266 is about 272.9008929705.

Adding to 20324266 its reverse (66242302), we get a palindrome (86566568).

The spelling of 20324266 in words is "twenty million, three hundred twenty-four thousand, two hundred sixty-six".