13691442 has 16 divisors (see below), whose sum is σ = 27758880. Its totient is φ = 4501152.

The previous prime is 13691441. The next prime is 13691449. The reversal of 13691442 is 24419631.

It is not an unprimeable number, because it can be changed into a prime (13691441) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 15192 + ... + 16067.

It is an arithmetic number, because the mean of its divisors is an integer number (1734930).

Almost surely, 2^13691442 is an apocalyptic number.

13691442 is an abundant number, since it is smaller than the sum of its proper divisors (14067438).

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

13691442 is a wasteful number, since it uses less digits than its factorization.

13691442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31337.

The product of its digits is 5184, while the sum is 30.

The square root of 13691442 is about 3700.1948597337. The cubic root of 13691442 is about 239.2304168395.

The spelling of 13691442 in words is "thirteen million, six hundred ninety-one thousand, four hundred forty-two".