12940133340 has 48 divisors (see below), whose sum is σ = 36237323808. Its totient is φ = 3450230784.

The previous prime is 12940133317. The next prime is 12940133341. The reversal of 12940133340 is 4333104921.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 12940133298 and 12940133307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12940133341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 805224 + ... + 821136.

It is an arithmetic number, because the mean of its divisors is an integer number (754944246).

Almost surely, 2^12940133340 is an apocalyptic number.

12940133340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12940133340 is an abundant number, since it is smaller than the sum of its proper divisors (23297190468).

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

12940133340 is a wasteful number, since it uses less digits than its factorization.

12940133340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29478 (or 29476 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The spelling of 12940133340 in words is "twelve billion, nine hundred forty million, one hundred thirty-three thousand, three hundred forty".