118487830 has 16 divisors (see below), whose sum is σ = 213462720. Its totient is φ = 47354112.

The previous prime is 118487821. The next prime is 118487867. The reversal of 118487830 is 38784811.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8806 + ... + 17734.

It is an arithmetic number, because the mean of its divisors is an integer number (13341420).

Almost surely, 2^118487830 is an apocalyptic number.

118487830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118487830 is a deficient number, since it is larger than the sum of its proper divisors (94974890).

118487830 is a wasteful number, since it uses less digits than its factorization.

118487830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10263.

The product of its (nonzero) digits is 43008, while the sum is 40.

The square root of 118487830 is about 10885.2115275726. The cubic root of 118487830 is about 491.1617996081.

The spelling of 118487830 in words is "one hundred eighteen million, four hundred eighty-seven thousand, eight hundred thirty".