404896023636 has 96 divisors (see below), whose sum is σ = 1036377659520. Its totient is φ = 122283853824.

The previous prime is 404896023607. The next prime is 404896023647. The reversal of 404896023636 is 636320698404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1795675 + ... + 2008541.

It is an arithmetic number, because the mean of its divisors is an integer number (10795600620).

Almost surely, 2^404896023636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404896023636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (518188829760).

404896023636 is an abundant number, since it is smaller than the sum of its proper divisors (631481635884).

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

404896023636 is a wasteful number, since it uses less digits than its factorization.

404896023636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213113 (or 213111 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 51.

The spelling of 404896023636 in words is "four hundred four billion, eight hundred ninety-six million, twenty-three thousand, six hundred thirty-six".