1091295928 has 16 divisors (see below), whose sum is σ = 2069172000. Its totient is φ = 539516736.

The previous prime is 1091295899. The next prime is 1091295991. The reversal of 1091295928 is 8295921901.

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, 765648 + ... + 767071.

It is an arithmetic number, because the mean of its divisors is an integer number (129323250).

Almost surely, 2^1091295928 is an apocalyptic number.

It is an amenable number.

1091295928 is a deficient number, since it is larger than the sum of its proper divisors (977876072).

1091295928 is a wasteful number, since it uses less digits than its factorization.

1091295928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532814 (or 1532810 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 46.

The square root of 1091295928 is about 33034.7684720205. The cubic root of 1091295928 is about 1029.5501626978.

The spelling of 1091295928 in words is "one billion, ninety-one million, two hundred ninety-five thousand, nine hundred twenty-eight".