1091169344 has 28 divisors (see below), whose sum is σ = 2292661404. Its totient is φ = 513490944.

The previous prime is 1091169329. The next prime is 1091169383. The reversal of 1091169344 is 4439611901.

It can be written as a sum of positive squares in 2 ways, for example, as 610682944 + 480486400 = 24712^2 + 21920^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1091169298 and 1091169307.

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, 500369 + ... + 502544.

Almost surely, 2^1091169344 is an apocalyptic number.

It is an amenable number.

1091169344 is an abundant number, since it is smaller than the sum of its proper divisors (1201492060).

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

1091169344 is a wasteful number, since it uses less digits than its factorization.

1091169344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002942 (or 1002932 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 1091169344 is about 33032.8524956595. The cubic root of 1091169344 is about 1029.5103538755.

The spelling of 1091169344 in words is "one billion, ninety-one million, one hundred sixty-nine thousand, three hundred forty-four".