12440232021040 has 40 divisors (see below), whose sum is σ = 28923859870560. Its totient is φ = 4976037682176.

The previous prime is 12440232021037. The next prime is 12440232021059. The reversal of 12440232021040 is 4012023204421.

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

It is a junction number, because it is equal to n+sod(n) for n = 12440232020996 and 12440232021014.

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, 6831957 + ... + 8459083.

It is an arithmetic number, because the mean of its divisors is an integer number (723096496764).

Almost surely, 2^{12440232021040} is an apocalyptic number.

12440232021040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12440232021040 is an abundant number, since it is smaller than the sum of its proper divisors (16483627849520).

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

12440232021040 is a wasteful number, since it uses less digits than its factorization.

12440232021040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722709 (or 1722703 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 12440232021040 its reverse (4012023204421), we get a palindrome (16452255225461).

The spelling of 12440232021040 in words is "twelve trillion, four hundred forty billion, two hundred thirty-two million, twenty-one thousand, forty".