228717534 has 32 divisors (see below), whose sum is σ = 464302080. Its totient is φ = 75103200.

The previous prime is 228717521. The next prime is 228717583. The reversal of 228717534 is 435717822.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 228717492 and 228717501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123999 + ... + 125829.

It is an arithmetic number, because the mean of its divisors is an integer number (14509440).

Almost surely, 2^228717534 is an apocalyptic number.

228717534 is an abundant number, since it is smaller than the sum of its proper divisors (235584546).

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

228717534 is a wasteful number, since it uses less digits than its factorization.

228717534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136.

The product of its digits is 94080, while the sum is 39.

The square root of 228717534 is about 15123.4101313163. The cubic root of 228717534 is about 611.5516655339.

The spelling of 228717534 in words is "two hundred twenty-eight million, seven hundred seventeen thousand, five hundred thirty-four".