12442320240 has 160 divisors (see below), whose sum is σ = 46401553920. Its totient is φ = 2694269952.

The previous prime is 12442320223. The next prime is 12442320263. The reversal of 12442320240 is 4202324421.

It is a super-2 number, since 2×12442320240² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 12442320240.

It is a congruent 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, 162979 + ... + 226818.

It is an arithmetic number, because the mean of its divisors is an integer number (290009712).

Almost surely, 2^12442320240 is an apocalyptic number.

12442320240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12442320240 is an abundant number, since it is smaller than the sum of its proper divisors (33959233680).

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

12442320240 is a wasteful number, since it uses less digits than its factorization.

12442320240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389839 (or 389833 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 12442320240 its reverse (4202324421), we get a palindrome (16644644661).

The spelling of 12442320240 in words is "twelve billion, four hundred forty-two million, three hundred twenty thousand, two hundred forty".