13443534 has 48 divisors (see below), whose sum is σ = 31838352. Its totient is φ = 4074624.

The previous prime is 13443527. The next prime is 13443541. The reversal of 13443534 is 43534431.

13443534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13443527) and next prime (13443541).

It is a junction number, because it is equal to n+sod(n) for n = 13443498 and 13443507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16689 + ... + 17475.

It is an arithmetic number, because the mean of its divisors is an integer number (663299).

Almost surely, 2^13443534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13443534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15919176).

13443534 is an abundant number, since it is smaller than the sum of its proper divisors (18394818).

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

13443534 is a wasteful number, since it uses less digits than its factorization.

13443534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881 (or 878 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 13443534 is about 3666.5425130496. The cubic root of 13443534 is about 237.7777153916. Note that the first 4 decimals are identical.

Adding to 13443534 its reverse (43534431), we get a palindrome (56977965).

The spelling of 13443534 in words is "thirteen million, four hundred forty-three thousand, five hundred thirty-four".