404044223 has 4 divisors (see below), whose sum is σ = 440775528. Its totient is φ = 367312920.

The previous prime is 404044189. The next prime is 404044231. The reversal of 404044223 is 322440404.

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 404044223 - 2⁶ = 404044159 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 (404044273) 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, 18365636 + ... + 18365657.

It is an arithmetic number, because the mean of its divisors is an integer number (110193882).

Almost surely, 2^404044223 is an apocalyptic number.

404044223 is a deficient number, since it is larger than the sum of its proper divisors (36731305).

404044223 is a wasteful number, since it uses less digits than its factorization.

404044223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36731304.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 404044223 is about 20100.8513003803. The cubic root of 404044223 is about 739.2811518156.

Adding to 404044223 its reverse (322440404), we get a palindrome (726484627).

The spelling of 404044223 in words is "four hundred four million, forty-four thousand, two hundred twenty-three".