404440814985 has 16 divisors (see below), whose sum is σ = 647123717760. Its totient is φ = 215695630080.

The previous prime is 404440814951. The next prime is 404440815013. The reversal of 404440814985 is 589418044404.

It is not a de Polignac number, because 404440814985 - 2¹⁰ = 404440813961 is a prime.

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, 188625 + ... + 918945.

It is an arithmetic number, because the mean of its divisors is an integer number (40445232360).

Almost surely, 2^404440814985 is an apocalyptic number.

It is an amenable number.

404440814985 is a deficient number, since it is larger than the sum of its proper divisors (242682902775).

404440814985 is a wasteful number, since it uses less digits than its factorization.

404440814985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767248.

The product of its (nonzero) digits is 2949120, while the sum is 51.

The spelling of 404440814985 in words is "four hundred four billion, four hundred forty million, eight hundred fourteen thousand, nine hundred eighty-five".