8452780344 has 144 divisors (see below), whose sum is σ = 24261775200. Its totient is φ = 2658210048.

The previous prime is 8452780327. The next prime is 8452780381. The reversal of 8452780344 is 4430872548.

It is a happy number.

8452780344 is a `hidden beast` number, since 8 + 4 + 527 + 80 + 3 + 44 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 8452780344.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8134977 + ... + 8136015.

It is an arithmetic number, because the mean of its divisors is an integer number (168484550).

Almost surely, 2^8452780344 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 8452780344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12130887600).

8452780344 is an abundant number, since it is smaller than the sum of its proper divisors (15808994856).

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

8452780344 is a wasteful number, since it uses less digits than its factorization.

8452780344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402 (or 1376 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 45.

The square root of 8452780344 is about 91939.0033881160. The cubic root of 8452780344 is about 2037.0414264203.

The spelling of 8452780344 in words is "eight billion, four hundred fifty-two million, seven hundred eighty thousand, three hundred forty-four".