228285776 has 10 divisors (see below), whose sum is σ = 442303722. Its totient is φ = 114142880.

The previous prime is 228285763. The next prime is 228285791. The reversal of 228285776 is 677582822.

It can be written as a sum of positive squares in only one way, i.e., 227285776 + 1000000 = 15076^2 + 1000^2 .

It is a super-2 number, since 2×228285776² = 104228791047844352, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 228285776.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7133915 + ... + 7133946.

Almost surely, 2^228285776 is an apocalyptic number.

It is an amenable number.

228285776 is a deficient number, since it is larger than the sum of its proper divisors (214017946).

228285776 is a wasteful number, since it uses less digits than its factorization.

228285776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14267869 (or 14267863 counting only the distinct ones).

The product of its digits is 752640, while the sum is 47.

The square root of 228285776 is about 15109.1288961343. The cubic root of 228285776 is about 611.1666073923.

The spelling of 228285776 in words is "two hundred twenty-eight million, two hundred eighty-five thousand, seven hundred seventy-six".