228342585 has 8 divisors (see below), whose sum is σ = 365348160. Its totient is φ = 121782704.

The previous prime is 228342547. The next prime is 228342619. The reversal of 228342585 is 585243822.

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

It is a cyclic number.

It is not a de Polignac number, because 228342585 - 2¹⁷ = 228211513 is a prime.

It is a super-2 number, since 2×228342585² = 104280672248964450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7611405 + ... + 7611434.

It is an arithmetic number, because the mean of its divisors is an integer number (45668520).

Almost surely, 2^228342585 is an apocalyptic number.

It is an amenable number.

228342585 is a deficient number, since it is larger than the sum of its proper divisors (137005575).

228342585 is a wasteful number, since it uses less digits than its factorization.

228342585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15222847.

The product of its digits is 153600, while the sum is 39.

The square root of 228342585 is about 15111.0087353558. The cubic root of 228342585 is about 611.2172995332.

The spelling of 228342585 in words is "two hundred twenty-eight million, three hundred forty-two thousand, five hundred eighty-five".