2002404400 has 30 divisors (see below), whose sum is σ = 4810777532. Its totient is φ = 800961600.

The previous prime is 2002404373. The next prime is 2002404401. The reversal of 2002404400 is 44042002.

It is a super-2 number, since 2×2002404400² = 8019246762278720000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (2002404401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2502606 + ... + 2503405.

Almost surely, 2^2002404400 is an apocalyptic number.

2002404400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002404400 is an abundant number, since it is smaller than the sum of its proper divisors (2808373132).

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

2002404400 is a wasteful number, since it uses less digits than its factorization.

2002404400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5006029 (or 5006018 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 2002404400 is about 44748.2334846863. The cubic root of 2002404400 is about 1260.4257400648.

Adding to 2002404400 its reverse (44042002), we get a palindrome (2046446402).

The spelling of 2002404400 in words is "two billion, two million, four hundred four thousand, four hundred".