1108979712 has 156 divisors (see below), whose sum is σ = 3258379800. Its totient is φ = 363331584.

The previous prime is 1108979689. The next prime is 1108979713. The reversal of 1108979712 is 2179798011.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1108979713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2469664 + ... + 2470112.

It is an arithmetic number, because the mean of its divisors is an integer number (20887050).

Almost surely, 2^1108979712 is an apocalyptic number.

1108979712 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 1108979712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1629189900).

1108979712 is an abundant number, since it is smaller than the sum of its proper divisors (2149400088).

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

1108979712 is an equidigital number, since it uses as much as digits as its factorization.

1108979712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 45.

The square root of 1108979712 is about 33301.3469997837. The cubic root of 1108979712 is about 1035.0814694674.

The spelling of 1108979712 in words is "one billion, one hundred eight million, nine hundred seventy-nine thousand, seven hundred twelve".