118772478 has 48 divisors (see below), whose sum is σ = 286730496. Its totient is φ = 35223120.

The previous prime is 118772443. The next prime is 118772503. The reversal of 118772478 is 874277811.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2925 + ... + 15687.

It is an arithmetic number, because the mean of its divisors is an integer number (5973552).

Almost surely, 2^118772478 is an apocalyptic number.

118772478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 118772478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143365248).

118772478 is an abundant number, since it is smaller than the sum of its proper divisors (167958018).

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

118772478 is a wasteful number, since it uses less digits than its factorization.

118772478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12829 (or 12826 counting only the distinct ones).

The product of its digits is 175616, while the sum is 45.

The square root of 118772478 is about 10898.2786714233. The cubic root of 118772478 is about 491.5547975430.

The spelling of 118772478 in words is "one hundred eighteen million, seven hundred seventy-two thousand, four hundred seventy-eight".