452217919 has 4 divisors (see below), whose sum is σ = 452261880. Its totient is φ = 452173960.

The previous prime is 452217893. The next prime is 452217929. The reversal of 452217919 is 919712254.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 452217919 - 2⁷ = 452217791 is a prime.

It is a super-2 number, since 2×452217919² = 409002092529381122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452217929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2652 + ... + 30190.

It is an arithmetic number, because the mean of its divisors is an integer number (113065470).

Almost surely, 2^452217919 is an apocalyptic number.

452217919 is a deficient number, since it is larger than the sum of its proper divisors (43961).

452217919 is a wasteful number, since it uses less digits than its factorization.

452217919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43960.

The product of its digits is 45360, while the sum is 40.

The square root of 452217919 is about 21265.4160316698. The cubic root of 452217919 is about 767.5663417067.

The spelling of 452217919 in words is "four hundred fifty-two million, two hundred seventeen thousand, nine hundred nineteen".