404044023 has 16 divisors (see below), whose sum is σ = 544034816. Its totient is φ = 266716800.

The previous prime is 404044021. The next prime is 404044027. The reversal of 404044023 is 320440404.

It is not a de Polignac number, because 404044023 - 2¹ = 404044021 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 (404044021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 335823 + ... + 337023.

It is an arithmetic number, because the mean of its divisors is an integer number (34002176).

Almost surely, 2^404044023 is an apocalyptic number.

404044023 is a deficient number, since it is larger than the sum of its proper divisors (139990793).

404044023 is a wasteful number, since it uses less digits than its factorization.

404044023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2214.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 404044023 is about 20100.8463254660. The cubic root of 404044023 is about 739.2810298353.

Adding to 404044023 its reverse (320440404), we get a palindrome (724484427).

The spelling of 404044023 in words is "four hundred four million, forty-four thousand, twenty-three".