424004401 has 4 divisors (see below), whose sum is σ = 424167232. Its totient is φ = 423841572.

The previous prime is 424004387. The next prime is 424004407. The reversal of 424004401 is 104400424.

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 a cyclic number.

It is not a de Polignac number, because 424004401 - 2⁹ = 424003889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424004407) 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, 77445 + ... + 82738.

It is an arithmetic number, because the mean of its divisors is an integer number (106041808).

Almost surely, 2^424004401 is an apocalyptic number.

It is an amenable number.

424004401 is a deficient number, since it is larger than the sum of its proper divisors (162831).

424004401 is a wasteful number, since it uses less digits than its factorization.

424004401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162830.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 424004401 is about 20591.3671474237. The cubic root of 424004401 is about 751.2597501141.

Adding to 424004401 its reverse (104400424), we get a palindrome (528404825).

The spelling of 424004401 in words is "four hundred twenty-four million, four thousand, four hundred one".