13130442 has 24 divisors (see below), whose sum is σ = 30638244. Its totient is φ = 4040064.

The previous prime is 13130441. The next prime is 13130461. The reversal of 13130442 is 24403131.

It can be written as a sum of positive squares in 2 ways, for example, as 9126441 + 4004001 = 3021^2 + 2001^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (13130441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27823 + ... + 28290.

Almost surely, 2^13130442 is an apocalyptic number.

13130442 is an abundant number, since it is smaller than the sum of its proper divisors (17507802).

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

13130442 is a wasteful number, since it uses less digits than its factorization.

13130442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56134 (or 56131 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 13130442 is about 3623.5951760648. The cubic root of 13130442 is about 235.9172960229.

Adding to 13130442 its reverse (24403131), we get a palindrome (37533573).

The spelling of 13130442 in words is "thirteen million, one hundred thirty thousand, four hundred forty-two".