23440322220 has 96 divisors (see below), whose sum is σ = 76605032448. Its totient is φ = 5243788032.

The previous prime is 23440322209. The next prime is 23440322263. The reversal of 23440322220 is 2222304432.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 573987 + ... + 613466.

It is an arithmetic number, because the mean of its divisors is an integer number (797969088).

Almost surely, 2^23440322220 is an apocalyptic number.

23440322220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23440322220 is an abundant number, since it is smaller than the sum of its proper divisors (53164710228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23440322220 is a wasteful number, since it uses less digits than its factorization.

23440322220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187519 (or 1187517 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 23440322220 its reverse (2222304432), we get a palindrome (25662626652).

The spelling of 23440322220 in words is "twenty-three billion, four hundred forty million, three hundred twenty-two thousand, two hundred twenty".