6424401 has 4 divisors (see below), whose sum is σ = 8565872. Its totient is φ = 4282932.

The previous prime is 6424381. The next prime is 6424423. The reversal of 6424401 is 1044246.

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 6424401 - 2⁹ = 6423889 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6424001) 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, 1070731 + ... + 1070736.

It is an arithmetic number, because the mean of its divisors is an integer number (2141468).

Almost surely, 2^6424401 is an apocalyptic number.

It is an amenable number.

6424401 is a deficient number, since it is larger than the sum of its proper divisors (2141471).

6424401 is a wasteful number, since it uses less digits than its factorization.

6424401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141470.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 6424401 is about 2534.6402111542. The cubic root of 6424401 is about 185.8992112060.

Adding to 6424401 its reverse (1044246), we get a palindrome (7468647).

The spelling of 6424401 in words is "six million, four hundred twenty-four thousand, four hundred one".