6400242422 has 16 divisors (see below), whose sum is σ = 10991915520. Its totient is φ = 2737943208.

The previous prime is 6400242413. The next prime is 6400242439. The reversal of 6400242422 is 2242420046.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6400242391 and 6400242400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410222 + ... + 425537.

It is an arithmetic number, because the mean of its divisors is an integer number (686994720).

Almost surely, 2^6400242422 is an apocalyptic number.

6400242422 is a deficient number, since it is larger than the sum of its proper divisors (4591673098).

6400242422 is a wasteful number, since it uses less digits than its factorization.

6400242422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836315.

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 6400242422 is about 80001.5151231525. The cubic root of 6400242422 is about 1856.6589753001.

Adding to 6400242422 its reverse (2242420046), we get a palindrome (8642662468).

The spelling of 6400242422 in words is "six billion, four hundred million, two hundred forty-two thousand, four hundred twenty-two".