13543904 has 48 divisors (see below), whose sum is σ = 29438640. Its totient is φ = 6082560.

The previous prime is 13543877. The next prime is 13543927. The reversal of 13543904 is 40934531.

13543904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13543904² = 366874671122432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38192 + ... + 38544.

It is an arithmetic number, because the mean of its divisors is an integer number (613305).

Almost surely, 2^13543904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13543904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14719320).

13543904 is an abundant number, since it is smaller than the sum of its proper divisors (15894736).

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

13543904 is a wasteful number, since it uses less digits than its factorization.

13543904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483 (or 475 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 13543904 is about 3680.2043421528. The cubic root of 13543904 is about 238.3680016510.

The spelling of 13543904 in words is "thirteen million, five hundred forty-three thousand, nine hundred four".