12030442440 has 64 divisors (see below), whose sum is σ = 36772315200. Its totient is φ = 3147585792.

The previous prime is 12030442429. The next prime is 12030442469. The reversal of 12030442440 is 4424403021.

It is a happy number.

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 12030442440.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 939430 + ... + 952149.

It is an arithmetic number, because the mean of its divisors is an integer number (574567425).

Almost surely, 2^12030442440 is an apocalyptic number.

12030442440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12030442440 is an abundant number, since it is smaller than the sum of its proper divisors (24741872760).

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

12030442440 is a wasteful number, since it uses less digits than its factorization.

12030442440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891646 (or 1891642 counting only the distinct ones).

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

Adding to 12030442440 its reverse (4424403021), we get a palindrome (16454845461).

The spelling of 12030442440 in words is "twelve billion, thirty million, four hundred forty-two thousand, four hundred forty".