23440423022 has 4 divisors (see below), whose sum is σ = 35160634536. Its totient is φ = 11720211510.

The previous prime is 23440423007. The next prime is 23440423033. The reversal of 23440423022 is 22032404432.

It is a happy number.

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

It is a super-2 number, since 2×23440423022² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23440422982 and 23440423000.

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, 5860105754 + ... + 5860105757.

It is an arithmetic number, because the mean of its divisors is an integer number (8790158634).

Almost surely, 2^23440423022 is an apocalyptic number.

23440423022 is a deficient number, since it is larger than the sum of its proper divisors (11720211514).

23440423022 is a wasteful number, since it uses less digits than its factorization.

23440423022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11720211513.

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 23440423022 its reverse (22032404432), we get a palindrome (45472827454).

The spelling of 23440423022 in words is "twenty-three billion, four hundred forty million, four hundred twenty-three thousand, twenty-two".