118617408 has 336 divisors, whose sum is σ = 437871616. Its totient is φ = 29859840.

The previous prime is 118617407. The next prime is 118617413. The reversal of 118617408 is 804716811.

It is a tau number, because it is divible by the number of its divisors (336).

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

It is a zygodrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118617407) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1624860 + ... + 1624932.

Almost surely, 2^118617408 is an apocalyptic number.

118617408 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 118617408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218935808).

118617408 is an abundant number, since it is smaller than the sum of its proper divisors (319254208).

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

118617408 is a wasteful number, since it uses less digits than its factorization.

118617408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The square root of 118617408 is about 10891.1619214848. The cubic root of 118617408 is about 491.3407788262.

It can be divided in two parts, 118617 and 408, that added together give a square (119025 = 345²).

The spelling of 118617408 in words is "one hundred eighteen million, six hundred seventeen thousand, four hundred eight".