20716022 has 4 divisors (see below), whose sum is σ = 31074036. Its totient is φ = 10358010.

The previous prime is 20716001. The next prime is 20716037. The reversal of 20716022 is 22061702.

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 = 20715985 and 20716003.

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, 5179004 + ... + 5179007.

It is an arithmetic number, because the mean of its divisors is an integer number (7768509).

Almost surely, 2^20716022 is an apocalyptic number.

20716022 is a deficient number, since it is larger than the sum of its proper divisors (10358014).

20716022 is a wasteful number, since it uses less digits than its factorization.

20716022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10358013.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 20716022 is about 4551.4856915078. The cubic root of 20716022 is about 274.6431603060.

Adding to 20716022 its reverse (22061702), we get a palindrome (42777724).

The spelling of 20716022 in words is "twenty million, seven hundred sixteen thousand, twenty-two".