452781 has 12 divisors (see below), whose sum is σ = 747552. Its totient is φ = 258696.

The previous prime is 452773. The next prime is 452797. The reversal of 452781 is 187254.

It is not a de Polignac number, because 452781 - 2³ = 452773 is a prime.

It is a super-2 number, since 2×452781² = 410021267922, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

452781 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452701) 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, 3531 + ... + 3656.

It is an arithmetic number, because the mean of its divisors is an integer number (62296).

2⁴⁵²⁷⁸¹ is an apocalyptic number.

It is an amenable number.

452781 is a deficient number, since it is larger than the sum of its proper divisors (294771).

452781 is a wasteful number, since it uses less digits than its factorization.

452781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7200 (or 7197 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 452781 is about 672.8900355927. The cubic root of 452781 is about 76.7884789033.

The spelling of 452781 in words is "four hundred fifty-two thousand, seven hundred eighty-one".