228955778 has 16 divisors (see below), whose sum is σ = 353800824. Its totient is φ = 111041280.

The previous prime is 228955763. The next prime is 228955787. The reversal of 228955778 is 877559822.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 218951209 + 10004569 = 14797^2 + 3163^2 .

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 20348 + ... + 29528.

Almost surely, 2^228955778 is an apocalyptic number.

228955778 is a deficient number, since it is larger than the sum of its proper divisors (124845046).

228955778 is a wasteful number, since it uses less digits than its factorization.

228955778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9557.

The product of its digits is 2822400, while the sum is 53.

The square root of 228955778 is about 15131.2847438676. The cubic root of 228955778 is about 611.7639331181.

The spelling of 228955778 in words is "two hundred twenty-eight million, nine hundred fifty-five thousand, seven hundred seventy-eight".