13188942 has 48 divisors (see below), whose sum is σ = 31056480. Its totient is φ = 4021056.

The previous prime is 13188941. The next prime is 13188943. The reversal of 13188942 is 24988131.

It is an interprime number because it is at equal distance from previous prime (13188941) and next prime (13188943).

It is a junction number, because it is equal to n+sod(n) for n = 13188897 and 13188906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13188941) 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, 36559 + ... + 36917.

It is an arithmetic number, because the mean of its divisors is an integer number (647010).

Almost surely, 2^13188942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13188942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15528240).

13188942 is an abundant number, since it is smaller than the sum of its proper divisors (17867538).

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

13188942 is a wasteful number, since it uses less digits than its factorization.

13188942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 534 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 13188942 is about 3631.6582989042. The cubic root of 13188942 is about 236.2671374148.

The spelling of 13188942 in words is "thirteen million, one hundred eighty-eight thousand, nine hundred forty-two".