452021724 has 144 divisors (see below), whose sum is σ = 1473937920. Its totient is φ = 113339520.

The previous prime is 452021707. The next prime is 452021729. The reversal of 452021724 is 427120254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452021729) 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, 77577 + ... + 83199.

It is an arithmetic number, because the mean of its divisors is an integer number (10235680).

Almost surely, 2^452021724 is an apocalyptic number.

452021724 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 452021724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (736968960).

452021724 is an abundant number, since it is smaller than the sum of its proper divisors (1021916196).

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

452021724 is a wasteful number, since it uses less digits than its factorization.

452021724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5680 (or 5675 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 452021724 is about 21260.8025248343. The cubic root of 452021724 is about 767.4553226194.

Adding to 452021724 its reverse (427120254), we get a palindrome (879141978).

It can be divided in two parts, 4520 and 21724, that added together give a square (26244 = 162²).

The spelling of 452021724 in words is "four hundred fifty-two million, twenty-one thousand, seven hundred twenty-four".