13534320 has 40 divisors (see below), whose sum is σ = 41957136. Its totient is φ = 3609088.

The previous prime is 13534307. The next prime is 13534333. The reversal of 13534320 is 2343531.

It is an interprime number because it is at equal distance from previous prime (13534307) and next prime (13534333).

It is a tau number, because it is divible by the number of its divisors (40).

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, 27957 + ... + 28436.

Almost surely, 2^13534320 is an apocalyptic number.

13534320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13534320 is an abundant number, since it is smaller than the sum of its proper divisors (28422816).

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

13534320 is a wasteful number, since it uses less digits than its factorization.

13534320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56409 (or 56403 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 13534320 is about 3678.9020101112. The cubic root of 13534320 is about 238.3117633611.

Adding to 13534320 its reverse (2343531), we get a palindrome (15877851).

The spelling of 13534320 in words is "thirteen million, five hundred thirty-four thousand, three hundred twenty".