23440420222 has 16 divisors (see below), whose sum is σ = 35762860800. Its totient is φ = 11519536600.

The previous prime is 23440420207. The next prime is 23440420291. The reversal of 23440420222 is 22202404432.

It is a super-4 number, since 4×23440420222⁴ (a number of 43 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 829929 + ... + 857707.

It is an arithmetic number, because the mean of its divisors is an integer number (2235178800).

Almost surely, 2^23440420222 is an apocalyptic number.

23440420222 is a deficient number, since it is larger than the sum of its proper divisors (12322440578).

23440420222 is a wasteful number, since it uses less digits than its factorization.

23440420222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34991.

The product of its (nonzero) digits is 6144, while the sum is 25.

Adding to 23440420222 its reverse (22202404432), we get a palindrome (45642824654).

The spelling of 23440420222 in words is "twenty-three billion, four hundred forty million, four hundred twenty thousand, two hundred twenty-two".