13742842 has 4 divisors (see below), whose sum is σ = 20614266. Its totient is φ = 6871420.

The previous prime is 13742837. The next prime is 13742849. The reversal of 13742842 is 24824731.

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., 9865881 + 3876961 = 3141^2 + 1969^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (13742849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3435709 + ... + 3435712.

Almost surely, 2^13742842 is an apocalyptic number.

13742842 is a deficient number, since it is larger than the sum of its proper divisors (6871424).

13742842 is an equidigital number, since it uses as much as digits as its factorization.

13742842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6871423.

The product of its digits is 10752, while the sum is 31.

The square root of 13742842 is about 3707.1339333776. The cubic root of 13742842 is about 239.5294135361.

The spelling of 13742842 in words is "thirteen million, seven hundred forty-two thousand, eight hundred forty-two".