4002404405 has 8 divisors (see below), whose sum is σ = 4968502200. Its totient is φ = 3091512256.

The previous prime is 4002404387. The next prime is 4002404423. The reversal of 4002404405 is 5044042004.

It is an interprime number because it is at equal distance from previous prime (4002404387) and next prime (4002404423).

It can be written as a sum of positive squares in 4 ways, for example, as 323761 + 4002080644 = 569^2 + 63262^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4002404405 - 2¹² = 4002400309 is a prime.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 13801250 + ... + 13801539.

It is an arithmetic number, because the mean of its divisors is an integer number (621062775).

Almost surely, 2^4002404405 is an apocalyptic number.

It is an amenable number.

4002404405 is a deficient number, since it is larger than the sum of its proper divisors (966097795).

4002404405 is a wasteful number, since it uses less digits than its factorization.

4002404405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27602823.

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 4002404405 is about 63264.5588382627. The cubic root of 4002404405 is about 1587.7190511790.

Adding to 4002404405 its reverse (5044042004), we get a palindrome (9046446409).

The spelling of 4002404405 in words is "four billion, two million, four hundred four thousand, four hundred five".