1099806960 has 240 divisors, whose sum is σ = 4064552352. Its totient is φ = 245145600.

The previous prime is 1099806937. The next prime is 1099806971. The reversal of 1099806960 is 696089901.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 481020 + ... + 483300.

Almost surely, 2^1099806960 is an apocalyptic number.

1099806960 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 1099806960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2032276176).

1099806960 is an abundant number, since it is smaller than the sum of its proper divisors (2964745392).

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

1099806960 is a wasteful number, since it uses less digits than its factorization.

1099806960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2352 (or 2339 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 48.

The square root of 1099806960 is about 33163.3375883671. The cubic root of 1099806960 is about 1032.2197266650.

The spelling of 1099806960 in words is "one billion, ninety-nine million, eight hundred six thousand, nine hundred sixty".