111960640 has 112 divisors (see below), whose sum is σ = 308116224. Its totient is φ = 38297600.

The previous prime is 111960637. The next prime is 111960643. The reversal of 111960640 is 46069111.

It is an interprime number because it is at equal distance from previous prime (111960637) and next prime (111960643).

It is a junction number, because it is equal to n+sod(n) for n = 111960599 and 111960608.

It is not an unprimeable number, because it can be changed into a prime (111960643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58905 + ... + 60775.

Almost surely, 2^111960640 is an apocalyptic number.

111960640 is a gapful number since it is divisible by the number (10) 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 111960640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154058112).

111960640 is an abundant number, since it is smaller than the sum of its proper divisors (196155584).

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

111960640 is a wasteful number, since it uses less digits than its factorization.

111960640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916 (or 1906 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 111960640 is about 10581.1454956446. The cubic root of 111960640 is about 481.9719800290.

The spelling of 111960640 in words is "one hundred eleven million, nine hundred sixty thousand, six hundred forty".