452209643 has 4 divisors (see below), whose sum is σ = 453178440. Its totient is φ = 451240848.

The previous prime is 452209613. The next prime is 452209663. The reversal of 452209643 is 346902254.

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-452209643 is a prime.

It is a super-2 number, since 2×452209643² = 408987122444374898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (452209603) 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, 483698 + ... + 484631.

It is an arithmetic number, because the mean of its divisors is an integer number (113294610).

Almost surely, 2^452209643 is an apocalyptic number.

452209643 is a deficient number, since it is larger than the sum of its proper divisors (968797).

452209643 is an equidigital number, since it uses as much as digits as its factorization.

452209643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968796.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 452209643 is about 21265.2214425338. The cubic root of 452209643 is about 767.5616592903.

The spelling of 452209643 in words is "four hundred fifty-two million, two hundred nine thousand, six hundred forty-three".