404023044413 has 4 divisors (see below), whose sum is σ = 405834807168. Its totient is φ = 402211281660.

The previous prime is 404023044401. The next prime is 404023044437. The reversal of 404023044413 is 314440320404.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-404023044413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404023044913) 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, 905881043 + ... + 905881488.

It is an arithmetic number, because the mean of its divisors is an integer number (101458701792).

Almost surely, 2^404023044413 is an apocalyptic number.

It is an amenable number.

404023044413 is a deficient number, since it is larger than the sum of its proper divisors (1811762755).

404023044413 is a wasteful number, since it uses less digits than its factorization.

404023044413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1811762754.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 404023044413 its reverse (314440320404), we get a palindrome (718463364817).

The spelling of 404023044413 in words is "four hundred four billion, twenty-three million, forty-four thousand, four hundred thirteen".