1109877792 has 144 divisors (see below), whose sum is σ = 3081667680. Its totient is φ = 349640704.

The previous prime is 1109877781. The next prime is 1109877803. The reversal of 1109877792 is 2977789011.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1109877781) and next prime (1109877803).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4763308 + ... + 4763540.

It is an arithmetic number, because the mean of its divisors is an integer number (21400470).

Almost surely, 2^1109877792 is an apocalyptic number.

1109877792 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 1109877792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1540833840).

1109877792 is an abundant number, since it is smaller than the sum of its proper divisors (1971789888).

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

1109877792 is a wasteful number, since it uses less digits than its factorization.

1109877792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 51.

The square root of 1109877792 is about 33314.8284101840. The cubic root of 1109877792 is about 1035.3608058505.

The spelling of 1109877792 in words is "one billion, one hundred nine million, eight hundred seventy-seven thousand, seven hundred ninety-two".