118889380 has 12 divisors (see below), whose sum is σ = 249667740. Its totient is φ = 47555744.

The previous prime is 118889359. The next prime is 118889383. The reversal of 118889380 is 83988811.

It can be written as a sum of positive squares in 2 ways, for example, as 94128804 + 24760576 = 9702^2 + 4976^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 118889380.

It is not an unprimeable number, because it can be changed into a prime (118889383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2972215 + ... + 2972254.

It is an arithmetic number, because the mean of its divisors is an integer number (20805645).

Almost surely, 2^118889380 is an apocalyptic number.

118889380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118889380 is an abundant number, since it is smaller than the sum of its proper divisors (130778360).

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

118889380 is a wasteful number, since it uses less digits than its factorization.

118889380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5944478 (or 5944476 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 46.

The square root of 118889380 is about 10903.6406763980. The cubic root of 118889380 is about 491.7160158580.

The spelling of 118889380 in words is "one hundred eighteen million, eight hundred eighty-nine thousand, three hundred eighty".