6402426401 has 8 divisors (see below), whose sum is σ = 7426269120. Its totient is φ = 5405886288.

The previous prime is 6402426379. The next prime is 6402426449. The reversal of 6402426401 is 1046242046.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6402426401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6402426101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6825146 + ... + 6826083.

It is an arithmetic number, because the mean of its divisors is an integer number (928283640).

Almost surely, 2^6402426401 is an apocalyptic number.

It is an amenable number.

6402426401 is a deficient number, since it is larger than the sum of its proper divisors (1023842719).

6402426401 is a wasteful number, since it uses less digits than its factorization.

6402426401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13651303.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 6402426401 is about 80015.1635691636. The cubic root of 6402426401 is about 1856.8701362119.

Adding to 6402426401 its reverse (1046242046), we get a palindrome (7448668447).

The spelling of 6402426401 in words is "six billion, four hundred two million, four hundred twenty-six thousand, four hundred one".