228507 has 8 divisors (see below), whose sum is σ = 310080. Its totient is φ = 149640.

The previous prime is 228479. The next prime is 228509. The reversal of 228507 is 705822.

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

It is not a de Polignac number, because 228507 - 2⁶ = 228443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 469 + ... + 822.

It is an arithmetic number, because the mean of its divisors is an integer number (38760).

2²²⁸⁵⁰⁷ is an apocalyptic number.

228507 is a deficient number, since it is larger than the sum of its proper divisors (81573).

228507 is a wasteful number, since it uses less digits than its factorization.

228507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 228507 is about 478.0240579720. The cubic root of 228507 is about 61.1363963930.

The spelling of 228507 in words is "two hundred twenty-eight thousand, five hundred seven".