13489542 has 48 divisors (see below), whose sum is σ = 32140368. Its totient is φ = 4055040.

The previous prime is 13489537. The next prime is 13489549. The reversal of 13489542 is 24598431.

13489542 is a `hidden beast` number, since 1 + 34 + 89 + 542 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 13489497 and 13489506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13489549) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 38038 + ... + 38390.

It is an arithmetic number, because the mean of its divisors is an integer number (669591).

Almost surely, 2^13489542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13489542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16070184).

13489542 is an abundant number, since it is smaller than the sum of its proper divisors (18650826).

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

13489542 is a wasteful number, since it uses less digits than its factorization.

13489542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565 (or 562 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 13489542 is about 3672.8111849100. The cubic root of 13489542 is about 238.0486565774.

Subtracting 13489542 from its reverse (24598431), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 134 and 89542, that added together give a triangular number (89676 = T₄₂₃).

The spelling of 13489542 in words is "thirteen million, four hundred eighty-nine thousand, five hundred forty-two".