20242066 has 8 divisors (see below), whose sum is σ = 32698764. Its totient is φ = 9342480.

The previous prime is 20242051. The next prime is 20242067. The reversal of 20242066 is 66024202.

It is a happy number.

20242066 is nontrivially palindromic in base 15.

It can be written as a sum of positive squares in 2 ways, for example, as 20061441 + 180625 = 4479^2 + 425^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20242067) by changing a digit.

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, 389245 + ... + 389296.

Almost surely, 2^20242066 is an apocalyptic number.

20242066 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20242066 is a deficient number, since it is larger than the sum of its proper divisors (12456698).

20242066 is a wasteful number, since it uses less digits than its factorization.

20242066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778556.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 20242066 is about 4499.1183580786. The cubic root of 20242066 is about 272.5324866580.

Adding to 20242066 its reverse (66024202), we get a palindrome (86266268).

The spelling of 20242066 in words is "twenty million, two hundred forty-two thousand, sixty-six".