452639 has 4 divisors (see below), whose sum is σ = 493800. Its totient is φ = 411480.

The previous prime is 452633. The next prime is 452671. The reversal of 452639 is 936254.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-452639 is a prime.

It is a d-powerful number, because it can be written as 4⁹ + 5³ + 6 + 2¹⁷ + 3⁵ + 9⁵ .

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 452639.

It is not an unprimeable number, because it can be changed into a prime (452633) 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 3 ways as a sum of consecutive naturals, for example, 20564 + ... + 20585.

It is an arithmetic number, because the mean of its divisors is an integer number (123450).

2⁴⁵²⁶³⁹ is an apocalyptic number.

452639 is a deficient number, since it is larger than the sum of its proper divisors (41161).

452639 is a wasteful number, since it uses less digits than its factorization.

452639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41160.

The product of its digits is 6480, while the sum is 29.

The square root of 452639 is about 672.7845123069. The cubic root of 452639 is about 76.7804506629.

The spelling of 452639 in words is "four hundred fifty-two thousand, six hundred thirty-nine".