118628550 has 120 divisors (see below), whose sum is σ = 349203096. Its totient is φ = 29756160.

The previous prime is 118628519. The next prime is 118628557. The reversal of 118628550 is 55826811.

118628550 is a `hidden beast` number, since 1 + 1 + 86 + 28 + 550 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118628557) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 67989 + ... + 69711.

Almost surely, 2^118628550 is an apocalyptic number.

118628550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 118628550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174601548).

118628550 is an abundant number, since it is smaller than the sum of its proper divisors (230574546).

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

118628550 is a wasteful number, since it uses less digits than its factorization.

118628550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1764 (or 1750 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 36.

The square root of 118628550 is about 10891.6734251445. The cubic root of 118628550 is about 491.3561625928.

The spelling of 118628550 in words is "one hundred eighteen million, six hundred twenty-eight thousand, five hundred fifty".