1099678028 has 12 divisors (see below), whose sum is σ = 1990796640. Its totient is φ = 530878992.

The previous prime is 1099677983. The next prime is 1099678043. The reversal of 1099678028 is 8208769901.

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, 4739876 + ... + 4740107.

It is an arithmetic number, because the mean of its divisors is an integer number (165899720).

Almost surely, 2^1099678028 is an apocalyptic number.

It is an amenable number.

1099678028 is a deficient number, since it is larger than the sum of its proper divisors (891118612).

1099678028 is a wasteful number, since it uses less digits than its factorization.

1099678028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9480016 (or 9480014 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 50.

The square root of 1099678028 is about 33161.3936377831. The cubic root of 1099678028 is about 1032.1793888726.

The spelling of 1099678028 in words is "one billion, ninety-nine million, six hundred seventy-eight thousand, twenty-eight".