1100720672 has 24 divisors (see below), whose sum is σ = 2191398300. Its totient is φ = 544175104.

The previous prime is 1100720669. The next prime is 1100720741. The reversal of 1100720672 is 2760270011.

It can be written as a sum of positive squares in 2 ways, for example, as 995781136 + 104939536 = 31556^2 + 10244^2 .

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, 190397 + ... + 196092.

Almost surely, 2^1100720672 is an apocalyptic number.

It is an amenable number.

1100720672 is a deficient number, since it is larger than the sum of its proper divisors (1090677628).

1100720672 is an equidigital number, since it uses as much as digits as its factorization.

1100720672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386588 (or 386580 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 1100720672 is about 33177.1106638297. The cubic root of 1100720672 is about 1032.5055012048.

Adding to 1100720672 its reverse (2760270011), we get a palindrome (3860990683).

The spelling of 1100720672 in words is "one billion, one hundred million, seven hundred twenty thousand, six hundred seventy-two".