404402200431 has 4 divisors (see below), whose sum is σ = 539202933912. Its totient is φ = 269601466952.

The previous prime is 404402200421. The next prime is 404402200451. The reversal of 404402200431 is 134002204404.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 404402200431 - 2¹¹ = 404402198383 is a prime.

It is a super-2 number, since 2×404402200431² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404402200421) 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, 67400366736 + ... + 67400366741.

It is an arithmetic number, because the mean of its divisors is an integer number (134800733478).

Almost surely, 2^404402200431 is an apocalyptic number.

404402200431 is a deficient number, since it is larger than the sum of its proper divisors (134800733481).

404402200431 is a wasteful number, since it uses less digits than its factorization.

404402200431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134800733480.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 404402200431 its reverse (134002204404), we get a palindrome (538404404835).

The spelling of 404402200431 in words is "four hundred four billion, four hundred two million, two hundred thousand, four hundred thirty-one".