13857042 has 16 divisors (see below), whose sum is σ = 29172960. Its totient is φ = 4375872.

The previous prime is 13857029. The next prime is 13857047. The reversal of 13857042 is 24075831.

It is a super-2 number, since 2×13857042² = 384035225979528, which contains 22 as substring.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (13857047) 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, 60663 + ... + 60890.

It is an arithmetic number, because the mean of its divisors is an integer number (1823310).

Almost surely, 2^13857042 is an apocalyptic number.

13857042 is an abundant number, since it is smaller than the sum of its proper divisors (15315918).

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

13857042 is a wasteful number, since it uses less digits than its factorization.

13857042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121577.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 13857042 is about 3722.5048018774. The cubic root of 13857042 is about 240.1910631327.

The spelling of 13857042 in words is "thirteen million, eight hundred fifty-seven thousand, forty-two".