118842840 has 192 divisors, whose sum is σ = 416931840. Its totient is φ = 29272320.

The previous prime is 118842839. The next prime is 118842881. The reversal of 118842840 is 48248811.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 118842795 and 118842804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 256449 + ... + 256911.

It is an arithmetic number, because the mean of its divisors is an integer number (2171520).

Almost surely, 2^118842840 is an apocalyptic number.

118842840 is a gapful number since it is divisible by the number (10) 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 118842840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208465920).

118842840 is an abundant number, since it is smaller than the sum of its proper divisors (298089000).

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

118842840 is a wasteful number, since it uses less digits than its factorization.

118842840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 527 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 36.

The square root of 118842840 is about 10901.5063179361. The cubic root of 118842840 is about 491.6518457022.

The spelling of 118842840 in words is "one hundred eighteen million, eight hundred forty-two thousand, eight hundred forty".