404431101 has 12 divisors (see below), whose sum is σ = 584576928. Its totient is φ = 269436744.

The previous prime is 404431087. The next prime is 404431141. The reversal of 404431101 is 101134404.

It is not a de Polignac number, because 404431101 - 2⁹ = 404430589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404431141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 675 + ... + 28448.

It is an arithmetic number, because the mean of its divisors is an integer number (48714744).

Almost surely, 2^404431101 is an apocalyptic number.

It is an amenable number.

404431101 is a deficient number, since it is larger than the sum of its proper divisors (180145827).

404431101 is a wasteful number, since it uses less digits than its factorization.

404431101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30672 (or 30669 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 404431101 is about 20110.4724211044. The cubic root of 404431101 is about 739.5170338956.

Adding to 404431101 its reverse (101134404), we get a palindrome (505565505).

The spelling of 404431101 in words is "four hundred four million, four hundred thirty-one thousand, one hundred one".