118724940 has 168 divisors, whose sum is σ = 396627840. Its totient is φ = 29735424.

The previous prime is 118724909. The next prime is 118724981. The reversal of 118724940 is 49427811.

It is a super-2 number, since 2×118724940² = 28191222756007200, which contains 22 as substring.

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 = 118724895 and 118724904.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 247621 + ... + 248099.

It is an arithmetic number, because the mean of its divisors is an integer number (2360880).

Almost surely, 2^118724940 is an apocalyptic number.

118724940 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 118724940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198313920).

118724940 is an abundant number, since it is smaller than the sum of its proper divisors (277902900).

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

118724940 is a wasteful number, since it uses less digits than its factorization.

118724940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523 (or 506 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 118724940 is about 10896.0974665244. The cubic root of 118724940 is about 491.4892081331.

The spelling of 118724940 in words is "one hundred eighteen million, seven hundred twenty-four thousand, nine hundred forty".