404432101 has 2 divisors, whose sum is σ = 404432102. Its totient is φ = 404432100.

The previous prime is 404432059. The next prime is 404432111. The reversal of 404432101 is 101234404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221235876 + 183196225 = 14874^2 + 13535^2 .

It is a cyclic number.

It is not a de Polignac number, because 404432101 - 2²⁵ = 370877669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404432111) 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 as a sum of consecutive naturals, namely, 202216050 + 202216051.

It is an arithmetic number, because the mean of its divisors is an integer number (202216051).

Almost surely, 2^404432101 is an apocalyptic number.

It is an amenable number.

404432101 is a deficient number, since it is larger than the sum of its proper divisors (1).

404432101 is an equidigital number, since it uses as much as digits as its factorization.

404432101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 404432101 is about 20110.4972837571. The cubic root of 404432101 is about 739.5176434073.

Adding to 404432101 its reverse (101234404), we get a palindrome (505666505).

The spelling of 404432101 in words is "four hundred four million, four hundred thirty-two thousand, one hundred one".