452542420 has 72 divisors (see below), whose sum is σ = 1070299944. Its totient is φ = 160512000.

The previous prime is 452542417. The next prime is 452542429. The reversal of 452542420 is 24245254.

452542420 is nontrivially palindromic in base 3.

It can be written as a sum of positive squares in 4 ways, for example, as 894916 + 451647504 = 946^2 + 21252^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452542429) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 96940 + ... + 101500.

It is an arithmetic number, because the mean of its divisors is an integer number (14865277).

Almost surely, 2^452542420 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 452542420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (535149972).

452542420 is an abundant number, since it is smaller than the sum of its proper divisors (617757524).

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

452542420 is a wasteful number, since it uses less digits than its factorization.

452542420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4633 (or 4620 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 452542420 is about 21273.0444459649. The cubic root of 452542420 is about 767.7498936932.

Adding to 452542420 its reverse (24245254), we get a palindrome (476787674).

It can be divided in two parts, 45254 and 2420, that added together give a palindrome (47674).

The spelling of 452542420 in words is "four hundred fifty-two million, five hundred forty-two thousand, four hundred twenty".