1099242272 has 18 divisors (see below), whose sum is σ = 2164502529. Its totient is φ = 549527360.

The previous prime is 1099242257. The next prime is 1099242281. The reversal of 1099242272 is 2722429901.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 1096669456 + 2572816 = 33116^2 + 1604^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=23444.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 184622 + ... + 190482.

Almost surely, 2^1099242272 is an apocalyptic number.

It is an amenable number.

1099242272 is a deficient number, since it is larger than the sum of its proper divisors (1065260257).

1099242272 is an frugal number, since it uses more digits than its factorization.

1099242272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11732 (or 5863 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 1099242272 is about 33154.8227562748. The cubic root of 1099242272 is about 1032.0430344813.

The spelling of 1099242272 in words is "one billion, ninety-nine million, two hundred forty-two thousand, two hundred seventy-two".