118361628 has 192 divisors, whose sum is σ = 392663040. Its totient is φ = 29937600.

The previous prime is 118361623. The next prime is 118361641. The reversal of 118361628 is 826163811.

118361628 is a `hidden beast` number, since 1 + 18 + 3 + 616 + 28 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 118361592 and 118361601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118361623) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 357423 + ... + 357753.

It is an arithmetic number, because the mean of its divisors is an integer number (2045120).

Almost surely, 2^118361628 is an apocalyptic number.

118361628 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118361628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196331520).

118361628 is an abundant number, since it is smaller than the sum of its proper divisors (274301412).

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

118361628 is a wasteful number, since it uses less digits than its factorization.

118361628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405 (or 397 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 118361628 is about 10879.4130356375. The cubic root of 118361628 is about 490.9873580036.

118361628 divided by its sum of digits (36) gives a palindrome (3287823).

The spelling of 118361628 in words is "one hundred eighteen million, three hundred sixty-one thousand, six hundred twenty-eight".