2400122452 has 144 divisors (see below), whose sum is σ = 5423241600. Its totient is φ = 909342720.

The previous prime is 2400122449. The next prime is 2400122453. The reversal of 2400122452 is 2542210042.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2400122453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17266999 + ... + 17267137.

It is an arithmetic number, because the mean of its divisors is an integer number (37661400).

Almost surely, 2^2400122452 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 2400122452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2711620800).

2400122452 is an abundant number, since it is smaller than the sum of its proper divisors (3023119148).

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

2400122452 is a wasteful number, since it uses less digits than its factorization.

2400122452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 2400122452 is about 48991.0446102142. The cubic root of 2400122452 is about 1338.8886701670. Note that the first 3 decimals are identical.

Adding to 2400122452 its reverse (2542210042), we get a palindrome (4942332494).

The spelling of 2400122452 in words is "two billion, four hundred million, one hundred twenty-two thousand, four hundred fifty-two".