1284674228 has 6 divisors (see below), whose sum is σ = 2248179906. Its totient is φ = 642337112.

The previous prime is 1284674191. The next prime is 1284674239. The reversal of 1284674228 is 8224764821.

It can be written as a sum of positive squares in only one way, i.e., 1011367204 + 273307024 = 31802^2 + 16532^2 .

It is a congruent 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 as a sum of consecutive naturals, namely, 160584275 + ... + 160584282.

It is an arithmetic number, because the mean of its divisors is an integer number (374696651).

Almost surely, 2^1284674228 is an apocalyptic number.

It is an amenable number.

1284674228 is a deficient number, since it is larger than the sum of its proper divisors (963505678).

1284674228 is a wasteful number, since it uses less digits than its factorization.

1284674228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321168561 (or 321168559 counting only the distinct ones).

The product of its digits is 344064, while the sum is 44.

The square root of 1284674228 is about 35842.3524339572. The cubic root of 1284674228 is about 1087.0870876682.

The spelling of 1284674228 in words is "one billion, two hundred eighty-four million, six hundred seventy-four thousand, two hundred twenty-eight".