1129647328 has 12 divisors (see below), whose sum is σ = 2223993240. Its totient is φ = 564823648.

The previous prime is 1129647317. The next prime is 1129647329. The reversal of 1129647328 is 8237469211.

It is a super-2 number, since 2×1129647328² = 2552206171315079168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129647329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17650708 + ... + 17650771.

It is an arithmetic number, because the mean of its divisors is an integer number (185332770).

Almost surely, 2^1129647328 is an apocalyptic number.

It is an amenable number.

1129647328 is a deficient number, since it is larger than the sum of its proper divisors (1094345912).

1129647328 is an equidigital number, since it uses as much as digits as its factorization.

1129647328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35301489 (or 35301481 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 1129647328 is about 33610.2265389569. The cubic root of 1129647328 is about 1041.4720672541.

The spelling of 1129647328 in words is "one billion, one hundred twenty-nine million, six hundred forty-seven thousand, three hundred twenty-eight".