1128835994 has 32 divisors (see below), whose sum is σ = 2009024640. Its totient is φ = 468936000.

The previous prime is 1128835973. The next prime is 1128836053. The reversal of 1128835994 is 4995388211.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9347 + ... + 48425.

It is an arithmetic number, because the mean of its divisors is an integer number (62782020).

Almost surely, 2^1128835994 is an apocalyptic number.

1128835994 is a deficient number, since it is larger than the sum of its proper divisors (880188646).

1128835994 is a wasteful number, since it uses less digits than its factorization.

1128835994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39206.

The product of its digits is 622080, while the sum is 50.

The square root of 1128835994 is about 33598.1546219432. The cubic root of 1128835994 is about 1041.2226725826. Note that the first 3 decimals are identical.

The spelling of 1128835994 in words is "one billion, one hundred twenty-eight million, eight hundred thirty-five thousand, nine hundred ninety-four".