118189440 has 288 divisors, whose sum is σ = 439648560. Its totient is φ = 29245440.

The previous prime is 118189439. The next prime is 118189441. The reversal of 118189440 is 44981811.

It is an interprime number because it is at equal distance from previous prime (118189439) and next prime (118189441).

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 118189395 and 118189404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118189441) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1664605 + ... + 1664675.

Almost surely, 2^118189440 is an apocalyptic number.

118189440 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 118189440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219824280).

118189440 is an abundant number, since it is smaller than the sum of its proper divisors (321459120).

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

118189440 is a wasteful number, since it uses less digits than its factorization.

118189440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 118189440 is about 10871.4966770910. The cubic root of 118189440 is about 490.7491525367.

The spelling of 118189440 in words is "one hundred eighteen million, one hundred eighty-nine thousand, four hundred forty".