12444233420 has 12 divisors (see below), whose sum is σ = 26132890224. Its totient is φ = 4977693360.

The previous prime is 12444233357. The next prime is 12444233441. The reversal of 12444233420 is 2433244421.

It is a super-2 number, since 2×12444233420² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311105816 + ... + 311105855.

It is an arithmetic number, because the mean of its divisors is an integer number (2177740852).

Almost surely, 2^12444233420 is an apocalyptic number.

12444233420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12444233420 is an abundant number, since it is smaller than the sum of its proper divisors (13688656804).

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

12444233420 is a wasteful number, since it uses less digits than its factorization.

12444233420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622211680 (or 622211678 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 12444233420 its reverse (2433244421), we get a palindrome (14877477841).

The spelling of 12444233420 in words is "twelve billion, four hundred forty-four million, two hundred thirty-three thousand, four hundred twenty".