404004430989 has 48 divisors (see below), whose sum is σ = 622841985792. Its totient is φ = 251779866624.

The previous prime is 404004430967. The next prime is 404004431009. The reversal of 404004430989 is 989034400404.

It is not a de Polignac number, because 404004430989 - 2¹¹ = 404004428941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404004430189) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2747904 + ... + 2891190.

It is an arithmetic number, because the mean of its divisors is an integer number (12975874704).

Almost surely, 2^404004430989 is an apocalyptic number.

It is an amenable number.

404004430989 is a deficient number, since it is larger than the sum of its proper divisors (218837554803).

404004430989 is a wasteful number, since it uses less digits than its factorization.

404004430989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143626 (or 143623 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 404004430989 in words is "four hundred four billion, four million, four hundred thirty thousand, nine hundred eighty-nine".