404172428016 has 40 divisors (see below), whose sum is σ = 1193270978944. Its totient is φ = 115477836480.

The previous prime is 404172427987. The next prime is 404172428017. The reversal of 404172428016 is 610824271404.

404172428016 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404172428017) 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, 601446730 + ... + 601447401.

Almost surely, 2^404172428016 is an apocalyptic number.

It is an amenable number.

404172428016 is an abundant number, since it is smaller than the sum of its proper divisors (789098550928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404172428016 is a wasteful number, since it uses less digits than its factorization.

404172428016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202894149 (or 1202894143 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 39.

The spelling of 404172428016 in words is "four hundred four billion, one hundred seventy-two million, four hundred twenty-eight thousand, sixteen".