2002400440464 has 20 divisors (see below), whose sum is σ = 5172867804656. Its totient is φ = 667466813472.

The previous prime is 2002400440459. The next prime is 2002400440471. The reversal of 2002400440464 is 4640440042002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20858337874 + ... + 20858337969.

Almost surely, 2^{2002400440464} is an apocalyptic number.

2002400440464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2002400440464 is an abundant number, since it is smaller than the sum of its proper divisors (3170467364192).

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

2002400440464 is a wasteful number, since it uses less digits than its factorization.

2002400440464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41716675854 (or 41716675848 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 2002400440464 its reverse (4640440042002), we get a palindrome (6642840482466).

The spelling of 2002400440464 in words is "two trillion, two billion, four hundred million, four hundred forty thousand, four hundred sixty-four".