118188450 has 48 divisors (see below), whose sum is σ = 325678560. Its totient is φ = 31516560.

The previous prime is 118188443. The next prime is 118188457. The reversal of 118188450 is 54881811.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (118188443) and next prime (118188457).

It is not an unprimeable number, because it can be changed into a prime (118188457) 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 23 ways as a sum of consecutive naturals, for example, 42424 + ... + 45123.

It is an arithmetic number, because the mean of its divisors is an integer number (6784970).

Almost surely, 2^118188450 is an apocalyptic number.

118188450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118188450 is an abundant number, since it is smaller than the sum of its proper divisors (207490110).

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

118188450 is a wasteful number, since it uses less digits than its factorization.

118188450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87568 (or 87557 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 36.

The square root of 118188450 is about 10871.4511450864. The cubic root of 118188450 is about 490.7477822986.

The spelling of 118188450 in words is "one hundred eighteen million, one hundred eighty-eight thousand, four hundred fifty".