452021 has 4 divisors (see below), whose sum is σ = 454272. Its totient is φ = 449772.

The previous prime is 452017. The next prime is 452027. The reversal of 452021 is 120254.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120254 = 2 ⋅60127.

It is a cyclic number.

It is not a de Polignac number, because 452021 - 2² = 452017 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 451987 and 452005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 791 + ... + 1236.

It is an arithmetic number, because the mean of its divisors is an integer number (113568).

2⁴⁵²⁰²¹ is an apocalyptic number.

It is an amenable number.

452021 is a deficient number, since it is larger than the sum of its proper divisors (2251).

452021 is a wasteful number, since it uses less digits than its factorization.

452021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 452021 is about 672.3250701855. The cubic root of 452021 is about 76.7454912877.

Adding to 452021 its reverse (120254), we get a palindrome (572275).

It can be divided in two parts, 4 and 52021, that added together give a palindrome (52025).

The spelling of 452021 in words is "four hundred fifty-two thousand, twenty-one".