2002400340012 has 120 divisors (see below), whose sum is σ = 5345119167696. Its totient is φ = 653517061632.

The previous prime is 2002400339999. The next prime is 2002400340029. The reversal of 2002400340012 is 2100430042002.

2002400340012 is a `hidden beast` number, since 20 + 0 + 240 + 0 + 3 + 400 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2931343 + ... + 3549305.

Almost surely, 2^{2002400340012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2002400340012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2672559583848).

2002400340012 is an abundant number, since it is smaller than the sum of its proper divisors (3342718827684).

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

2002400340012 is a wasteful number, since it uses less digits than its factorization.

2002400340012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618189 (or 618178 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 2002400340012 its reverse (2100430042002), we get a palindrome (4102830382014).

The spelling of 2002400340012 in words is "two trillion, two billion, four hundred million, three hundred forty thousand, twelve".