13724442 has 24 divisors (see below), whose sum is σ = 30157920. Its totient is φ = 4509960.

The previous prime is 13724387. The next prime is 13724449. The reversal of 13724442 is 24442731.

13724442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13724442² = 376720616422728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13724449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4092 + ... + 6647.

It is an arithmetic number, because the mean of its divisors is an integer number (1256580).

Almost surely, 2^13724442 is an apocalyptic number.

13724442 is an abundant number, since it is smaller than the sum of its proper divisors (16433478).

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

13724442 is a wasteful number, since it uses less digits than its factorization.

13724442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10818 (or 10815 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 13724442 is about 3704.6514006044. The cubic root of 13724442 is about 239.4224655061.

The spelling of 13724442 in words is "thirteen million, seven hundred twenty-four thousand, four hundred forty-two".