13872534 has 24 divisors (see below), whose sum is σ = 30045672. Its totient is φ = 4268160.

The previous prime is 13872533. The next prime is 13872557. The reversal of 13872534 is 43527831.

It is a junction number, because it is equal to n+sod(n) for n = 13872495 and 13872504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13872533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5827 + ... + 7854.

It is an arithmetic number, because the mean of its divisors is an integer number (1251903).

Almost surely, 2^13872534 is an apocalyptic number.

13872534 is an abundant number, since it is smaller than the sum of its proper divisors (16173138).

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

13872534 is a wasteful number, since it uses less digits than its factorization.

13872534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13712 (or 13699 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 13872534 is about 3724.5850775623. The cubic root of 13872534 is about 240.2805399999.

The spelling of 13872534 in words is "thirteen million, eight hundred seventy-two thousand, five hundred thirty-four".