13724938 has 4 divisors (see below), whose sum is σ = 20587410. Its totient is φ = 6862468.

The previous prime is 13724927. The next prime is 13724941. The reversal of 13724938 is 83942731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11269449 + 2455489 = 3357^2 + 1567^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13724897 and 13724906.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3431233 + ... + 3431236.

Almost surely, 2^13724938 is an apocalyptic number.

13724938 is a deficient number, since it is larger than the sum of its proper divisors (6862472).

13724938 is an equidigital number, since it uses as much as digits as its factorization.

13724938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6862471.

The product of its digits is 36288, while the sum is 37.

The square root of 13724938 is about 3704.7183428703. The cubic root of 13724938 is about 239.4253497062.

The spelling of 13724938 in words is "thirteen million, seven hundred twenty-four thousand, nine hundred thirty-eight".