13724118 has 24 divisors (see below), whose sum is σ = 31301400. Its totient is φ = 4333824.

The previous prime is 13724107. The next prime is 13724131. The reversal of 13724118 is 81142731.

It is a junction number, because it is equal to n+sod(n) for n = 13724091 and 13724100.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 19723 + ... + 20406.

It is an arithmetic number, because the mean of its divisors is an integer number (1304225).

Almost surely, 2^13724118 is an apocalyptic number.

13724118 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13724118 is an abundant number, since it is smaller than the sum of its proper divisors (17577282).

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

13724118 is a wasteful number, since it uses less digits than its factorization.

13724118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40156 (or 40153 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 13724118 is about 3704.6076715355. The cubic root of 13724118 is about 239.4205814346.

Adding to 13724118 its reverse (81142731), we get a palindrome (94866849).

The spelling of 13724118 in words is "thirteen million, seven hundred twenty-four thousand, one hundred eighteen".