20023022 has 4 divisors (see below), whose sum is σ = 30034536. Its totient is φ = 10011510.

The previous prime is 20023009. The next prime is 20023027. The reversal of 20023022 is 22032002.

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 = 20022994 and 20023012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023027) 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 as a sum of consecutive naturals, namely, 5005754 + ... + 5005757.

It is an arithmetic number, because the mean of its divisors is an integer number (7508634).

Almost surely, 2^20023022 is an apocalyptic number.

20023022 is a deficient number, since it is larger than the sum of its proper divisors (10011514).

20023022 is a wasteful number, since it uses less digits than its factorization.

20023022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10011513.

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 20023022 is about 4474.7091525595. The cubic root of 20023022 is about 271.5458739258.

Adding to 20023022 its reverse (22032002), we get a palindrome (42055024).

The spelling of 20023022 in words is "twenty million, twenty-three thousand, twenty-two".