404435401 has 4 divisors (see below), whose sum is σ = 404566272. Its totient is φ = 404304532.

The previous prime is 404435347. The next prime is 404435407. The reversal of 404435401 is 104534404.

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 404435401 - 2⁹ = 404434889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404435407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60685 + ... + 67018.

It is an arithmetic number, because the mean of its divisors is an integer number (101141568).

Almost surely, 2^404435401 is an apocalyptic number.

It is an amenable number.

404435401 is a deficient number, since it is larger than the sum of its proper divisors (130871).

404435401 is a wasteful number, since it uses less digits than its factorization.

404435401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130870.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 404435401 is about 20110.5793302928. The cubic root of 404435401 is about 739.5196547887.

Adding to 404435401 its reverse (104534404), we get a palindrome (508969805).

The spelling of 404435401 in words is "four hundred four million, four hundred thirty-five thousand, four hundred one".