13240188 has 72 divisors (see below), whose sum is σ = 37965200. Its totient is φ = 3856896.

The previous prime is 13240181. The next prime is 13240189. The reversal of 13240188 is 88104231.

13240188 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13240181) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8148 + ... + 9636.

Almost surely, 2^13240188 is an apocalyptic number.

13240188 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13240188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18982600).

13240188 is an abundant number, since it is smaller than the sum of its proper divisors (24725012).

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

13240188 is a wasteful number, since it uses less digits than its factorization.

13240188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531 (or 1526 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 13240188 is about 3638.7069131767. The cubic root of 13240188 is about 236.5727494400.

The spelling of 13240188 in words is "thirteen million, two hundred forty thousand, one hundred eighty-eight".