2400543522 has 96 divisors (see below), whose sum is σ = 5847384816. Its totient is φ = 706867200.

The previous prime is 2400543503. The next prime is 2400543529. The reversal of 2400543522 is 2253450042.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 440622081 + 1959921441 = 20991^2 + 44271^2 .

It is not an unprimeable number, because it can be changed into a prime (2400543529) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 506122 + ... + 510842.

Almost surely, 2^2400543522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2400543522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2923692408).

2400543522 is an abundant number, since it is smaller than the sum of its proper divisors (3446841294).

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

2400543522 is a wasteful number, since it uses less digits than its factorization.

2400543522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4836 (or 4833 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 2400543522 is about 48995.3418398117. The cubic root of 2400543522 is about 1338.9669624067.

Adding to 2400543522 its reverse (2253450042), we get a palindrome (4653993564).

The spelling of 2400543522 in words is "two billion, four hundred million, five hundred forty-three thousand, five hundred twenty-two".