118404813 has 16 divisors (see below), whose sum is σ = 167481216. Its totient is φ = 74150400.

The previous prime is 118404763. The next prime is 118404817. The reversal of 118404813 is 318404811.

It is not a de Polignac number, because 118404813 - 2⁹ = 118404301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118404817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28720 + ... + 32582.

It is an arithmetic number, because the mean of its divisors is an integer number (10467576).

Almost surely, 2^118404813 is an apocalyptic number.

It is an amenable number.

118404813 is a deficient number, since it is larger than the sum of its proper divisors (49076403).

118404813 is a wasteful number, since it uses less digits than its factorization.

118404813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4484.

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 118404813 is about 10881.3975664893. The cubic root of 118404813 is about 491.0470640396.

It can be divided in two parts, 11840 and 4813, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 118404813 in words is "one hundred eighteen million, four hundred four thousand, eight hundred thirteen".