118040412 has 72 divisors (see below), whose sum is σ = 321855744. Its totient is φ = 33572448.

The previous prime is 118040383. The next prime is 118040413. The reversal of 118040412 is 214040811.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118040413) 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 23 ways as a sum of consecutive naturals, for example, 215523 + ... + 216069.

Almost surely, 2^118040412 is an apocalyptic number.

118040412 is a gapful number since it is divisible by the number (12) 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 118040412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160927872).

118040412 is an abundant number, since it is smaller than the sum of its proper divisors (203815332).

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

118040412 is a wasteful number, since it uses less digits than its factorization.

118040412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935 (or 926 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 118040412 is about 10864.6404450400. The cubic root of 118040412 is about 490.5427998494.

It can be divided in two parts, 1180404 and 12, that added together give a triangular number (1180416 = T₁₅₃₆).

The spelling of 118040412 in words is "one hundred eighteen million, forty thousand, four hundred twelve".