12240412040 has 32 divisors (see below), whose sum is σ = 27662273280. Its totient is φ = 4874592192.

The previous prime is 12240412027. The next prime is 12240412081. The reversal of 12240412040 is 4021404221.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 664952 + ... + 683111.

It is an arithmetic number, because the mean of its divisors is an integer number (864446040).

Almost surely, 2^12240412040 is an apocalyptic number.

12240412040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12240412040 is an abundant number, since it is smaller than the sum of its proper divisors (15421861240).

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

12240412040 is a wasteful number, since it uses less digits than its factorization.

12240412040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348301 (or 1348297 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 12240412040 its reverse (4021404221), we get a palindrome (16261816261).

The spelling of 12240412040 in words is "twelve billion, two hundred forty million, four hundred twelve thousand, forty".