228684506 has 8 divisors (see below), whose sum is σ = 349499124. Its totient is φ = 112184800.

The previous prime is 228684499. The next prime is 228684509. The reversal of 228684506 is 605486822.

It can be written as a sum of positive squares in 2 ways, for example, as 223353025 + 5331481 = 14945^2 + 2309^2 .

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

It is not an unprimeable number, because it can be changed into a prime (228684509) 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, 1078595 + ... + 1078806.

Almost surely, 2^228684506 is an apocalyptic number.

228684506 is a deficient number, since it is larger than the sum of its proper divisors (120814618).

228684506 is a wasteful number, since it uses less digits than its factorization.

228684506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2157456.

The product of its (nonzero) digits is 184320, while the sum is 41.

The square root of 228684506 is about 15122.3181424013. The cubic root of 228684506 is about 611.5222270377.

The spelling of 228684506 in words is "two hundred twenty-eight million, six hundred eighty-four thousand, five hundred six".