13942538 has 8 divisors (see below), whose sum is σ = 20968740. Its totient is φ = 6952960.

The previous prime is 13942519. The next prime is 13942547. The reversal of 13942538 is 83524931.

It can be written as a sum of positive squares in 2 ways, for example, as 11042329 + 2900209 = 3323^2 + 1703^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13942498 and 13942507.

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 3 ways as a sum of consecutive naturals, for example, 8183 + ... + 9738.

Almost surely, 2^13942538 is an apocalyptic number.

13942538 is a deficient number, since it is larger than the sum of its proper divisors (7026202).

13942538 is a wasteful number, since it uses less digits than its factorization.

13942538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18312.

The product of its digits is 25920, while the sum is 35.

The square root of 13942538 is about 3733.9708086700. The cubic root of 13942538 is about 240.6840323596.

The spelling of 13942538 in words is "thirteen million, nine hundred forty-two thousand, five hundred thirty-eight".