228205976 has 16 divisors (see below), whose sum is σ = 432042000. Its totient is φ = 112994784.

The previous prime is 228205963. The next prime is 228205987. The reversal of 228205976 is 679502822.

It is a super-2 number, since 2×228205976² = 104155934964225152, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137651 + ... + 139298.

It is an arithmetic number, because the mean of its divisors is an integer number (27002625).

Almost surely, 2^228205976 is an apocalyptic number.

It is an amenable number.

228205976 is a deficient number, since it is larger than the sum of its proper divisors (203836024).

228205976 is a wasteful number, since it uses less digits than its factorization.

228205976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277058 (or 277054 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 228205976 is about 15106.4878777299. The cubic root of 228205976 is about 611.0953855813.

The spelling of 228205976 in words is "two hundred twenty-eight million, two hundred five thousand, nine hundred seventy-six".