1129567828 has 12 divisors (see below), whose sum is σ = 1977279220. Its totient is φ = 564630912.

The previous prime is 1129567799. The next prime is 1129567843. The reversal of 1129567828 is 8287659211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 858372804 + 271195024 = 29298^2 + 16468^2 .

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20751 + ... + 51862.

Almost surely, 2^1129567828 is an apocalyptic number.

It is an amenable number.

1129567828 is a deficient number, since it is larger than the sum of its proper divisors (847711392).

1129567828 is a wasteful number, since it uses less digits than its factorization.

1129567828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76506 (or 76504 counting only the distinct ones).

The product of its digits is 483840, while the sum is 49.

The square root of 1129567828 is about 33609.0438423946. The cubic root of 1129567828 is about 1041.4476351535.

The spelling of 1129567828 in words is "one billion, one hundred twenty-nine million, five hundred sixty-seven thousand, eight hundred twenty-eight".