404044045 has 16 divisors (see below), whose sum is σ = 490762800. Its totient is φ = 319320064.

The previous prime is 404044027. The next prime is 404044051. The reversal of 404044045 is 540440404.

It can be written as a sum of positive squares in 8 ways, for example, as 33327529 + 370716516 = 5773^2 + 19254^2 .

It is a cyclic number.

It is not a de Polignac number, because 404044045 - 2⁹ = 404043533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145389 + ... + 148141.

It is an arithmetic number, because the mean of its divisors is an integer number (30672675).

Almost surely, 2^404044045 is an apocalyptic number.

It is an amenable number.

404044045 is a deficient number, since it is larger than the sum of its proper divisors (86718755).

404044045 is a wasteful number, since it uses less digits than its factorization.

404044045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3104.

The product of its (nonzero) digits is 5120, while the sum is 25.

The square root of 404044045 is about 20100.8468727066. The cubic root of 404044045 is about 739.2810432532.

Adding to 404044045 its reverse (540440404), we get a palindrome (944484449).

The spelling of 404044045 in words is "four hundred four million, forty-four thousand, forty-five".