452224140 has 96 divisors (see below), whose sum is σ = 1351655424. Its totient is φ = 112573440.

The previous prime is 452224133. The next prime is 452224147. The reversal of 452224140 is 41422254.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (452224133) and next prime (452224147).

It is a self number, because there is not a number n which added to its sum of digits gives 452224140.

It is not an unprimeable number, because it can be changed into a prime (452224147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127795 + ... + 131285.

It is an arithmetic number, because the mean of its divisors is an integer number (14079744).

Almost surely, 2^452224140 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 452224140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (675827712).

452224140 is an abundant number, since it is smaller than the sum of its proper divisors (899431284).

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

452224140 is a wasteful number, since it uses less digits than its factorization.

452224140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3647 (or 3645 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 452224140 is about 21265.5623015240. The cubic root of 452224140 is about 767.5698614023.

Adding to 452224140 its reverse (41422254), we get a palindrome (493646394).

The spelling of 452224140 in words is "four hundred fifty-two million, two hundred twenty-four thousand, one hundred forty".