1100450000 has 120 divisors (see below), whose sum is σ = 2871675576. Its totient is φ = 406080000.

The previous prime is 1100449969. The next prime is 1100450003. The reversal of 1100450000 is 540011.

It can be written as a sum of positive squares in 12 ways, for example, as 1049241664 + 51208336 = 32392^2 + 7156^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100450003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 649154 + ... + 650846.

Almost surely, 2^1100450000 is an apocalyptic number.

1100450000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1100450000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1435837788).

1100450000 is an abundant number, since it is smaller than the sum of its proper divisors (1771225576).

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

1100450000 is an equidigital number, since it uses as much as digits as its factorization.

1100450000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739 (or 1713 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 1100450000 is about 33173.0312151302. The cubic root of 1100450000 is about 1032.4208617357.

Adding to 1100450000 its reverse (540011), we get a palindrome (1100990011).

The spelling of 1100450000 in words is "one billion, one hundred million, four hundred fifty thousand".