1172027228 has 24 divisors (see below), whose sum is σ = 2123150400. Its totient is φ = 565439168.

The previous prime is 1172027159. The next prime is 1172027231. The reversal of 1172027228 is 8227202711.

It is a junction number, because it is equal to n+sod(n) for n = 1172027194 and 1172027203.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285293 + ... + 289371.

It is an arithmetic number, because the mean of its divisors is an integer number (88464600).

Almost surely, 2^1172027228 is an apocalyptic number.

It is an amenable number.

1172027228 is a deficient number, since it is larger than the sum of its proper divisors (951123172).

1172027228 is a wasteful number, since it uses less digits than its factorization.

1172027228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6589 (or 6587 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 1172027228 is about 34234.8832041238. The cubic root of 1172027228 is about 1054.3364808747.

Adding to 1172027228 its reverse (8227202711), we get a palindrome (9399229939).

The spelling of 1172027228 in words is "one billion, one hundred seventy-two million, twenty-seven thousand, two hundred twenty-eight".