217452 has 12 divisors (see below), whose sum is σ = 507416. Its totient is φ = 72480.

The previous prime is 217439. The next prime is 217457. The reversal of 217452 is 254712.

217452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (217457) 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, 9049 + ... + 9072.

2²¹⁷⁴⁵² is an apocalyptic number.

It is an amenable number.

217452 is an abundant number, since it is smaller than the sum of its proper divisors (289964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

217452 is a wasteful number, since it uses less digits than its factorization.

217452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18128 (or 18126 counting only the distinct ones).

The product of its digits is 560, while the sum is 21.

The square root of 217452 is about 466.3174884132. The cubic root of 217452 is about 60.1341443093.

The spelling of 217452 in words is "two hundred seventeen thousand, four hundred fifty-two".