118540390 has 32 divisors (see below), whose sum is σ = 224669376. Its totient is φ = 44943360.

The previous prime is 118540363. The next prime is 118540391. The reversal of 118540390 is 93045811.

It is a super-3 number, since 3×118540390³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118540391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23710 + ... + 28270.

It is an arithmetic number, because the mean of its divisors is an integer number (7020918).

Almost surely, 2^118540390 is an apocalyptic number.

118540390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118540390 is a deficient number, since it is larger than the sum of its proper divisors (106128986).

118540390 is a wasteful number, since it uses less digits than its factorization.

118540390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4704.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 118540390 is about 10887.6255446263. The cubic root of 118540390 is about 491.2344136702.

The spelling of 118540390 in words is "one hundred eighteen million, five hundred forty thousand, three hundred ninety".