452391 has 4 divisors (see below), whose sum is σ = 603192. Its totient is φ = 301592.

The previous prime is 452377. The next prime is 452393. The reversal of 452391 is 193254.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 452391 - 2⁹ = 451879 is a prime.

It is a D-number.

452391 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452393) 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, 75396 + ... + 75401.

It is an arithmetic number, because the mean of its divisors is an integer number (150798).

2⁴⁵²³⁹¹ is an apocalyptic number.

452391 is a deficient number, since it is larger than the sum of its proper divisors (150801).

452391 is a wasteful number, since it uses less digits than its factorization.

452391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150800.

The product of its digits is 1080, while the sum is 24.

The square root of 452391 is about 672.6001784121. The cubic root of 452391 is about 76.7664254828.

The spelling of 452391 in words is "four hundred fifty-two thousand, three hundred ninety-one".