6402334221 has 12 divisors (see below), whose sum is σ = 9734543520. Its totient is φ = 4043579400.

The previous prime is 6402334217. The next prime is 6402334223. The reversal of 6402334221 is 1224332046.

6402334221 is a `hidden beast` number, since 6 + 4 + 0 + 233 + 422 + 1 = 666.

It is not a de Polignac number, because 6402334221 - 2² = 6402334217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6402334223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18720105 + ... + 18720446.

It is an arithmetic number, because the mean of its divisors is an integer number (811211960).

Almost surely, 2^6402334221 is an apocalyptic number.

It is an amenable number.

6402334221 is a deficient number, since it is larger than the sum of its proper divisors (3332209299).

6402334221 is a wasteful number, since it uses less digits than its factorization.

6402334221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37440576 (or 37440573 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 6402334221 is about 80014.5875512709. The cubic root of 6402334221 is about 1856.8612246368.

Adding to 6402334221 its reverse (1224332046), we get a palindrome (7626666267).

The spelling of 6402334221 in words is "six billion, four hundred two million, three hundred thirty-four thousand, two hundred twenty-one".