1100980992 has 144 divisors (see below), whose sum is σ = 3108188160. Its totient is φ = 345010176.

The previous prime is 1100980961. The next prime is 1100981003. The reversal of 1100980992 is 2990890011.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1100980992.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2874433 + ... + 2874815.

It is an arithmetic number, because the mean of its divisors is an integer number (21584640).

Almost surely, 2^1100980992 is an apocalyptic number.

1100980992 is a gapful number since it is divisible by the number (12) 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 1100980992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1554094080).

1100980992 is an abundant number, since it is smaller than the sum of its proper divisors (2007207168).

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

1100980992 is a wasteful number, since it uses less digits than its factorization.

1100980992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 39.

The square root of 1100980992 is about 33181.0336186201. The cubic root of 1100980992 is about 1032.5868905021.

The spelling of 1100980992 in words is "one billion, one hundred million, nine hundred eighty thousand, nine hundred ninety-two".