228464 has 20 divisors (see below), whose sum is σ = 450120. Its totient is φ = 112320.

The previous prime is 228461. The next prime is 228469. The reversal of 228464 is 464822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228461) 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, 1679 + ... + 1809.

It is an arithmetic number, because the mean of its divisors is an integer number (22506).

228464 is a Friedman number, since it can be written as (26^4-48)/2, using all its digits and the basic arithmetic operations.

2²²⁸⁴⁶⁴ is an apocalyptic number.

It is an amenable number.

228464 is a deficient number, since it is larger than the sum of its proper divisors (221656).

228464 is a wasteful number, since it uses less digits than its factorization.

228464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 242 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

The square root of 228464 is about 477.9790790401. The cubic root of 228464 is about 61.1325613099.

The spelling of 228464 in words is "two hundred twenty-eight thousand, four hundred sixty-four".