4002002404 has 6 divisors (see below), whose sum is σ = 7003504214. Its totient is φ = 2001001200.

The previous prime is 4002002383. The next prime is 4002002437. The reversal of 4002002404 is 4042002004.

It can be written as a sum of positive squares in only one way, i.e., 3660492004 + 341510400 = 60502^2 + 18480^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500250297 + ... + 500250304.

Almost surely, 2^4002002404 is an apocalyptic number.

It is an amenable number.

4002002404 is a deficient number, since it is larger than the sum of its proper divisors (3001501810).

4002002404 is a wasteful number, since it uses less digits than its factorization.

4002002404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000500605 (or 1000500603 counting only the distinct ones).

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

The square root of 4002002404 is about 63261.3816162752. The cubic root of 4002002404 is about 1587.6658926313.

Adding to 4002002404 its reverse (4042002004), we get a palindrome (8044004408).

The spelling of 4002002404 in words is "four billion, two million, two thousand, four hundred four".