228181064 has 16 divisors (see below), whose sum is σ = 433701420. Its totient is φ = 112527360.

The previous prime is 228181039. The next prime is 228181067. The reversal of 228181064 is 460181822.

It is a happy number.

228181064 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 220284964 + 7896100 = 14842^2 + 2810^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 228181064.

It is not an unprimeable number, because it can be changed into a prime (228181067) 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, 194777 + ... + 195944.

Almost surely, 2^228181064 is an apocalyptic number.

It is an amenable number.

228181064 is a deficient number, since it is larger than the sum of its proper divisors (205520356).

228181064 is a wasteful number, since it uses less digits than its factorization.

228181064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390800 (or 390796 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 228181064 is about 15105.6633088388. The cubic root of 228181064 is about 611.0731481235.

The spelling of 228181064 in words is "two hundred twenty-eight million, one hundred eighty-one thousand, sixty-four".