452421 has 12 divisors (see below), whose sum is σ = 692172. Its totient is φ = 283776.

The previous prime is 452401. The next prime is 452443. The reversal of 452421 is 124254.

It can be written as a sum of positive squares in 2 ways, for example, as 216225 + 236196 = 465^2 + 486^2 .

It is not a de Polignac number, because 452421 - 2⁷ = 452293 is a prime.

It is a super-2 number, since 2×452421² = 409369522482, which contains 22 as substring.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 452394 and 452403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1326 + ... + 1631.

It is an arithmetic number, because the mean of its divisors is an integer number (57681).

2⁴⁵²⁴²¹ is an apocalyptic number.

It is an amenable number.

452421 is a deficient number, since it is larger than the sum of its proper divisors (239751).

452421 is a wasteful number, since it uses less digits than its factorization.

452421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2980 (or 2977 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 452421 is about 672.6224795530. The cubic root of 452421 is about 76.7681223497.

Adding to 452421 its reverse (124254), we get a palindrome (576675).

It can be divided in two parts, 4 and 52421, that added together give a palindrome (52425).

The spelling of 452421 in words is "four hundred fifty-two thousand, four hundred twenty-one".