13879542 has 16 divisors (see below), whose sum is σ = 27870192. Its totient is φ = 4608000.

The previous prime is 13879507. The next prime is 13879543. The reversal of 13879542 is 24597831.

It is a super-2 number, since 2×13879542² = 385283372259528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13879542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13879543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2959 + ... + 6042.

It is an arithmetic number, because the mean of its divisors is an integer number (1741887).

Almost surely, 2^13879542 is an apocalyptic number.

13879542 is an abundant number, since it is smaller than the sum of its proper divisors (13990650).

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

13879542 is a wasteful number, since it uses less digits than its factorization.

13879542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9263.

The product of its digits is 60480, while the sum is 39.

The square root of 13879542 is about 3725.5257347118. The cubic root of 13879542 is about 240.3209940980.

The spelling of 13879542 in words is "thirteen million, eight hundred seventy-nine thousand, five hundred forty-two".