12118740 has 24 divisors (see below), whose sum is σ = 33932640. Its totient is φ = 3231648.

The previous prime is 12118727. The next prime is 12118741. The reversal of 12118740 is 4781121.

It is a self number, because there is not a number n which added to its sum of digits gives 12118740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12118741) 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, 100930 + ... + 101049.

It is an arithmetic number, because the mean of its divisors is an integer number (1413860).

Almost surely, 2^12118740 is an apocalyptic number.

12118740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12118740 is an abundant number, since it is smaller than the sum of its proper divisors (21813900).

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

12118740 is a wasteful number, since it uses less digits than its factorization.

12118740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201991 (or 201989 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 12118740 is about 3481.1980696306. The cubic root of 12118740 is about 229.6955012715.

Adding to 12118740 its reverse (4781121), we get a palindrome (16899861).

The spelling of 12118740 in words is "twelve million, one hundred eighteen thousand, seven hundred forty".