13189540 has 48 divisors (see below), whose sum is σ = 34094592. Its totient is φ = 4173696.

The previous prime is 13189523. The next prime is 13189541. The reversal of 13189540 is 4598131.

It is not an unprimeable number, because it can be changed into a prime (13189541) 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, 1804 + ... + 5443.

It is an arithmetic number, because the mean of its divisors is an integer number (710304).

Almost surely, 2^13189540 is an apocalyptic number.

13189540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13189540 is an abundant number, since it is smaller than the sum of its proper divisors (20905052).

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

13189540 is a wasteful number, since it uses less digits than its factorization.

13189540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7276 (or 7274 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 13189540 is about 3631.7406295054. The cubic root of 13189540 is about 236.2707082246.

The spelling of 13189540 in words is "thirteen million, one hundred eighty-nine thousand, five hundred forty".