818888448 has 144 divisors (see below), whose sum is σ = 2622206720. Its totient is φ = 221626368.

The previous prime is 818888393. The next prime is 818888459. The reversal of 818888448 is 844888818.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 2.

It is a congruent number.

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, 98136 + ... + 106152.

Almost surely, 2^818888448 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 818888448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1311103360).

818888448 is an abundant number, since it is smaller than the sum of its proper divisors (1803318272).

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

818888448 is a wasteful number, since it uses less digits than its factorization.

818888448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8062 (or 8048 counting only the distinct ones).

The product of its digits is 4194304, while the sum is 57.

The square root of 818888448 is about 28616.2270049704. The cubic root of 818888448 is about 935.5670435348.

The spelling of 818888448 in words is "eight hundred eighteen million, eight hundred eighty-eight thousand, four hundred forty-eight".