6389422401 has 4 divisors (see below), whose sum is σ = 8519229872. Its totient is φ = 4259614932.

The previous prime is 6389422399. The next prime is 6389422423. The reversal of 6389422401 is 1042249836.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6389422401 - 2¹ = 6389422399 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6389422401.

It is not an unprimeable number, because it can be changed into a prime (6389422801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1064903731 + ... + 1064903736.

It is an arithmetic number, because the mean of its divisors is an integer number (2129807468).

Almost surely, 2^6389422401 is an apocalyptic number.

It is an amenable number.

6389422401 is a deficient number, since it is larger than the sum of its proper divisors (2129807471).

6389422401 is a wasteful number, since it uses less digits than its factorization.

6389422401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129807470.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 6389422401 is about 79933.8626678331. The cubic root of 6389422401 is about 1855.6121180587.

The spelling of 6389422401 in words is "six billion, three hundred eighty-nine million, four hundred twenty-two thousand, four hundred one".