228195784 has 16 divisors (see below), whose sum is σ = 428432220. Its totient is φ = 113947200.

The previous prime is 228195767. The next prime is 228195787. The reversal of 228195784 is 487591822.

It can be written as a sum of positive squares in 2 ways, for example, as 158004900 + 70190884 = 12570^2 + 8378^2 .

It is a super-3 number, since 3×228195784³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (228195787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12267 + ... + 24634.

Almost surely, 2^228195784 is an apocalyptic number.

It is an amenable number.

228195784 is a deficient number, since it is larger than the sum of its proper divisors (200236436).

228195784 is a wasteful number, since it uses less digits than its factorization.

228195784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37680 (or 37676 counting only the distinct ones).

The product of its digits is 322560, while the sum is 46.

The square root of 228195784 is about 15106.1505354607. The cubic root of 228195784 is about 611.0862879859.

The spelling of 228195784 in words is "two hundred twenty-eight million, one hundred ninety-five thousand, seven hundred eighty-four".