228446 has 8 divisors (see below), whose sum is σ = 362880. Its totient is φ = 107488.

The previous prime is 228443. The next prime is 228451. The reversal of 228446 is 644822.

228446 = T₆₈ + T₆₉ + ... + T₁₁₈.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228443) 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, 3326 + ... + 3393.

It is an arithmetic number, because the mean of its divisors is an integer number (45360).

228446 is a Friedman number, since it can be written as (26^4-84)/2, using all its digits and the basic arithmetic operations.

2²²⁸⁴⁴⁶ is an apocalyptic number.

228446 is a deficient number, since it is larger than the sum of its proper divisors (134434).

228446 is a wasteful number, since it uses less digits than its factorization.

228446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6738.

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

The square root of 228446 is about 477.9602493932. The cubic root of 228446 is about 61.1309557835.

The spelling of 228446 in words is "two hundred twenty-eight thousand, four hundred forty-six".