12435303440 has 40 divisors (see below), whose sum is σ = 33042379200. Its totient is φ = 4263532416.

The previous prime is 12435303427. The next prime is 12435303457. The reversal of 12435303440 is 4430353421.

It is a tau number, because it is divible by the number of its divisors (40).

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, 11102390 + ... + 11103509.

It is an arithmetic number, because the mean of its divisors is an integer number (826059480).

Almost surely, 2^12435303440 is an apocalyptic number.

12435303440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12435303440 is an abundant number, since it is smaller than the sum of its proper divisors (20607075760).

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

12435303440 is a wasteful number, since it uses less digits than its factorization.

12435303440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22205919 (or 22205913 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 12435303440 its reverse (4430353421), we get a palindrome (16865656861).

The spelling of 12435303440 in words is "twelve billion, four hundred thirty-five million, three hundred three thousand, four hundred forty".