118345940 has 12 divisors (see below), whose sum is σ = 248526516. Its totient is φ = 47338368.

The previous prime is 118345939. The next prime is 118345949. The reversal of 118345940 is 49543811.

It can be written as a sum of positive squares in 2 ways, for example, as 40094224 + 78251716 = 6332^2 + 8846^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 118345940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118345949) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2958629 + ... + 2958668.

It is an arithmetic number, because the mean of its divisors is an integer number (20710543).

Almost surely, 2^118345940 is an apocalyptic number.

118345940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118345940 is an abundant number, since it is smaller than the sum of its proper divisors (130180576).

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

118345940 is a wasteful number, since it uses less digits than its factorization.

118345940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5917306 (or 5917304 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 118345940 is about 10878.6920169660. The cubic root of 118345940 is about 490.9656647399.

The spelling of 118345940 in words is "one hundred eighteen million, three hundred forty-five thousand, nine hundred forty".