12400241240 has 32 divisors (see below), whose sum is σ = 28494175680. Its totient is φ = 4854561792.

The previous prime is 12400241237. The next prime is 12400241267. The reversal of 12400241240 is 4214200421.

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

It is a congruent number.

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, 3296057 + ... + 3299816.

It is an arithmetic number, because the mean of its divisors is an integer number (890442990).

Almost surely, 2^12400241240 is an apocalyptic number.

12400241240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12400241240 is an abundant number, since it is smaller than the sum of its proper divisors (16093934440).

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

12400241240 is a wasteful number, since it uses less digits than its factorization.

12400241240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6595931 (or 6595927 counting only the distinct ones).

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

Adding to 12400241240 its reverse (4214200421), we get a palindrome (16614441661).

The spelling of 12400241240 in words is "twelve billion, four hundred million, two hundred forty-one thousand, two hundred forty".