228864546 has 12 divisors (see below), whose sum is σ = 495873222. Its totient is φ = 76288176.

The previous prime is 228864529. The next prime is 228864569. The reversal of 228864546 is 645468822.

228864546 is a `hidden beast` number, since 2 + 28 + 86 + 4 + 546 = 666.

It can be written as a sum of positive squares in only one way, i.e., 194184225 + 34680321 = 13935^2 + 5889^2 .

It is a super-2 number, since 2×228864546² = 104757960831572232, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6357331 + ... + 6357366.

Almost surely, 2^228864546 is an apocalyptic number.

228864546 is an abundant number, since it is smaller than the sum of its proper divisors (267008676).

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

228864546 is a wasteful number, since it uses less digits than its factorization.

228864546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12714705 (or 12714702 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The square root of 228864546 is about 15128.2697622696. The cubic root of 228864546 is about 611.6826658060.

The spelling of 228864546 in words is "two hundred twenty-eight million, eight hundred sixty-four thousand, five hundred forty-six".