2002404 has 12 divisors (see below), whose sum is σ = 4672304. Its totient is φ = 667464.

The previous prime is 2002397. The next prime is 2002417. The reversal of 2002404 is 4042002.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 166867 = 2002404 / (2 + 0 + 0 + 2 + 4 + 0 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 2002404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83422 + ... + 83445.

2^2002404 is an apocalyptic number.

It is an amenable number.

2002404 is an abundant number, since it is smaller than the sum of its proper divisors (2669900).

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

2002404 is a wasteful number, since it uses less digits than its factorization.

2002404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166874 (or 166872 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 2002404 is about 1415.0632494698. The cubic root of 2002404 is about 126.0425656137.

Adding to 2002404 its reverse (4042002), we get a palindrome (6044406).

It can be divided in two parts, 2002 and 404, that multiplied together give a palindrome (808808).

The spelling of 2002404 in words is "two million, two thousand, four hundred four".