404086916 has 24 divisors (see below), whose sum is σ = 737122176. Its totient is φ = 193644000.

The previous prime is 404086913. The next prime is 404086919. The reversal of 404086916 is 619680404.

It is an interprime number because it is at equal distance from previous prime (404086913) and next prime (404086919).

It is a self number, because there is not a number n which added to its sum of digits gives 404086916.

It is not an unprimeable number, because it can be changed into a prime (404086913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10460 + ... + 30291.

It is an arithmetic number, because the mean of its divisors is an integer number (30713424).

Almost surely, 2^404086916 is an apocalyptic number.

It is an amenable number.

404086916 is a deficient number, since it is larger than the sum of its proper divisors (333035260).

404086916 is a wasteful number, since it uses less digits than its factorization.

404086916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40859 (or 40857 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 404086916 is about 20101.9132422762. The cubic root of 404086916 is about 739.3071894098.

The spelling of 404086916 in words is "four hundred four million, eighty-six thousand, nine hundred sixteen".