1113977216 has 128 divisors (see below), whose sum is σ = 2590963200. Its totient is φ = 471961600.

The previous prime is 1113977209. The next prime is 1113977273. The reversal of 1113977216 is 6127793111.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1113977216² = 2481890475534221312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1113977216.

It is a congruent number.

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, 1327325 + ... + 1328163.

It is an arithmetic number, because the mean of its divisors is an integer number (20241900).

Almost surely, 2^1113977216 is an apocalyptic number.

1113977216 is a gapful number since it is divisible by the number (16) 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 1113977216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1295481600).

1113977216 is an abundant number, since it is smaller than the sum of its proper divisors (1476985984).

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

1113977216 is a wasteful number, since it uses less digits than its factorization.

1113977216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928 (or 916 counting only the distinct ones).

The product of its digits is 15876, while the sum is 38.

The square root of 1113977216 is about 33376.2972182356. The cubic root of 1113977216 is about 1036.6339694382.

The spelling of 1113977216 in words is "one billion, one hundred thirteen million, nine hundred seventy-seven thousand, two hundred sixteen".