4002321255 has 16 divisors (see below), whose sum is σ = 6423068544. Its totient is φ = 2128119840.

The previous prime is 4002321221. The next prime is 4002321299. The reversal of 4002321255 is 5521232004.

It is not a de Polignac number, because 4002321255 - 2⁹ = 4002320743 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 15 ways as a sum of consecutive naturals, for example, 398089 + ... + 408018.

It is an arithmetic number, because the mean of its divisors is an integer number (401441784).

Almost surely, 2^4002321255 is an apocalyptic number.

4002321255 is a deficient number, since it is larger than the sum of its proper divisors (2420747289).

4002321255 is a wasteful number, since it uses less digits than its factorization.

4002321255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806446.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 4002321255 is about 63263.9016738614. The cubic root of 4002321255 is about 1587.7080561420.

Adding to 4002321255 its reverse (5521232004), we get a palindrome (9523553259).

The spelling of 4002321255 in words is "four billion, two million, three hundred twenty-one thousand, two hundred fifty-five".