1099080000 has 420 divisors, whose sum is σ = 4084917408. Its totient is φ = 282240000.

The previous prime is 1099079999. The next prime is 1099080011. The reversal of 1099080000 is 809901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 15479965 + ... + 15480035.

Almost surely, 2^1099080000 is an apocalyptic number.

1099080000 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 1099080000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2042458704).

1099080000 is an abundant number, since it is smaller than the sum of its proper divisors (2985837408).

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

1099080000 is an equidigital number, since it uses as much as digits as its factorization.

1099080000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 1099080000 is about 33152.3754804991. The cubic root of 1099080000 is about 1031.9922480038.

Adding to 1099080000 its reverse (809901), we get a palindrome (1099889901).

The spelling of 1099080000 in words is "one billion, ninety-nine million, eighty thousand".