404000040045 has 128 divisors (see below), whose sum is σ = 758970777600. Its totient is φ = 179694028800.

The previous prime is 404000039999. The next prime is 404000040061. The reversal of 404000040045 is 540040000404.

It is not a de Polignac number, because 404000040045 - 2⁹ = 404000039533 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 665568132 + ... + 665568738.

It is an arithmetic number, because the mean of its divisors is an integer number (5929459200).

Almost surely, 2^404000040045 is an apocalyptic number.

It is an amenable number.

404000040045 is a deficient number, since it is larger than the sum of its proper divisors (354970737555).

404000040045 is a wasteful number, since it uses less digits than its factorization.

404000040045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475.

The product of its (nonzero) digits is 1280, while the sum is 21.

Adding to 404000040045 its reverse (540040000404), we get a palindrome (944040040449).

The spelling of 404000040045 in words is "four hundred four billion, forty thousand, forty-five".