13661088 has 96 divisors (see below), whose sum is σ = 42456960. Its totient is φ = 3763200.

The previous prime is 13661083. The next prime is 13661191. The reversal of 13661088 is 88016631.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13661083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19138 + ... + 19838.

It is an arithmetic number, because the mean of its divisors is an integer number (442260).

Almost surely, 2^13661088 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 13661088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21228480).

13661088 is an abundant number, since it is smaller than the sum of its proper divisors (28795872).

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

13661088 is a wasteful number, since it uses less digits than its factorization.

13661088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750 (or 742 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 13661088 is about 3696.0909079729. The cubic root of 13661088 is about 239.0534943252.

The spelling of 13661088 in words is "thirteen million, six hundred sixty-one thousand, eighty-eight".