111884560 has 20 divisors (see below), whose sum is σ = 260131788. Its totient is φ = 44753792.

The previous prime is 111884557. The next prime is 111884561. The reversal of 111884560 is 65488111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17172736 + 94711824 = 4144^2 + 9732^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111884561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 699199 + ... + 699358.

Almost surely, 2^111884560 is an apocalyptic number.

111884560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111884560 is an abundant number, since it is smaller than the sum of its proper divisors (148247228).

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

111884560 is a wasteful number, since it uses less digits than its factorization.

111884560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398570 (or 1398564 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 34.

The square root of 111884560 is about 10577.5498108021. The cubic root of 111884560 is about 481.8627846990.

The spelling of 111884560 in words is "one hundred eleven million, eight hundred eighty-four thousand, five hundred sixty".