20662022 has 4 divisors (see below), whose sum is σ = 30993036. Its totient is φ = 10331010.

The previous prime is 20662009. The next prime is 20662039. The reversal of 20662022 is 22026602.

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

It is a junction number, because it is equal to n+sod(n) for n = 20661985 and 20662003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5165504 + ... + 5165507.

It is an arithmetic number, because the mean of its divisors is an integer number (7748259).

Almost surely, 2^20662022 is an apocalyptic number.

20662022 is a deficient number, since it is larger than the sum of its proper divisors (10331014).

20662022 is a wasteful number, since it uses less digits than its factorization.

20662022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10331013.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20662022 is about 4545.5496917315. The cubic root of 20662022 is about 274.4043172233.

Adding to 20662022 its reverse (22026602), we get a palindrome (42688624).

The spelling of 20662022 in words is "twenty million, six hundred sixty-two thousand, twenty-two".