1099730880 has 168 divisors, whose sum is σ = 3796296192. Its totient is φ = 292202496.

The previous prime is 1099730869. The next prime is 1099730881. The reversal of 1099730880 is 880379901.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1099730881) 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, 1102542 + ... + 1103538.

Almost surely, 2^1099730880 is an apocalyptic number.

1099730880 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 1099730880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1898148096).

1099730880 is an abundant number, since it is smaller than the sum of its proper divisors (2696565312).

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

1099730880 is a wasteful number, since it uses less digits than its factorization.

1099730880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1403 (or 1390 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 1099730880 is about 33162.1905187218. The cubic root of 1099730880 is about 1032.1959245826.

The spelling of 1099730880 in words is "one billion, ninety-nine million, seven hundred thirty thousand, eight hundred eighty".