243372 has 24 divisors (see below), whose sum is σ = 601776. Its totient is φ = 76288.

The previous prime is 243367. The next prime is 243391. The reversal of 243372 is 273342.

It is a happy number.

It is an unprimeable number.

243372 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 393 + ... + 800.

It is an arithmetic number, because the mean of its divisors is an integer number (25074).

2²⁴³³⁷² is an apocalyptic number.

It is an amenable number.

243372 is an abundant number, since it is smaller than the sum of its proper divisors (358404).

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

243372 is a wasteful number, since it uses less digits than its factorization.

243372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217 (or 1215 counting only the distinct ones).

The product of its digits is 1008, while the sum is 21.

The square root of 243372 is about 493.3274774427. The cubic root of 243372 is about 62.4343417147.

The spelling of 243372 in words is "two hundred forty-three thousand, three hundred seventy-two", and thus it is an iban number.