118156340 has 24 divisors (see below), whose sum is σ = 251530440. Its totient is φ = 46614528.

The previous prime is 118156333. The next prime is 118156343. The reversal of 118156340 is 43651811.

It can be written as a sum of positive squares in 4 ways, for example, as 23600164 + 94556176 = 4858^2 + 9724^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118156343) 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 7 ways as a sum of consecutive naturals, for example, 39005 + ... + 41924.

It is an arithmetic number, because the mean of its divisors is an integer number (10480435).

Almost surely, 2^118156340 is an apocalyptic number.

118156340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118156340 is an abundant number, since it is smaller than the sum of its proper divisors (133374100).

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

118156340 is a wasteful number, since it uses less digits than its factorization.

118156340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81011 (or 81009 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 118156340 is about 10869.9742409998. The cubic root of 118156340 is about 490.7033353763.

The spelling of 118156340 in words is "one hundred eighteen million, one hundred fifty-six thousand, three hundred forty".