228372 has 12 divisors (see below), whose sum is σ = 532896. Its totient is φ = 76120.

The previous prime is 228359. The next prime is 228383. The reversal of 228372 is 273822.

228372 is nontrivially palindromic in base 11.

228372 is digitally balanced in base 2 and base 3, because in such bases 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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9504 + ... + 9527.

It is an arithmetic number, because the mean of its divisors is an integer number (44408).

2²²⁸³⁷² is an apocalyptic number.

It is an amenable number.

228372 is an abundant number, since it is smaller than the sum of its proper divisors (304524).

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

228372 is a wasteful number, since it uses less digits than its factorization.

228372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19038 (or 19036 counting only the distinct ones).

The product of its digits is 1344, while the sum is 24.

The square root of 228372 is about 477.8828308278. The cubic root of 228372 is about 61.1243543995.

The spelling of 228372 in words is "two hundred twenty-eight thousand, three hundred seventy-two".