1099359204 has 12 divisors (see below), whose sum is σ = 2565171504. Its totient is φ = 366453064.

The previous prime is 1099359203. The next prime is 1099359251. The reversal of 1099359204 is 4029539901.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1099359203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45806622 + ... + 45806645.

It is an arithmetic number, because the mean of its divisors is an integer number (213764292).

Almost surely, 2^1099359204 is an apocalyptic number.

It is an amenable number.

1099359204 is an abundant number, since it is smaller than the sum of its proper divisors (1465812300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1099359204 is a wasteful number, since it uses less digits than its factorization.

1099359204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91613274 (or 91613272 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 1099359204 is about 33156.5861330747. The cubic root of 1099359204 is about 1032.0796277421.

The spelling of 1099359204 in words is "one billion, ninety-nine million, three hundred fifty-nine thousand, two hundred four".