130305442 has 16 divisors (see below), whose sum is σ = 215955072. Its totient is φ = 58653760.

The previous prime is 130305433. The next prime is 130305443. The reversal of 130305442 is 244503031.

It is not an unprimeable number, because it can be changed into a prime (130305443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82534 + ... + 84097.

It is an arithmetic number, because the mean of its divisors is an integer number (13497192).

Almost surely, 2^130305442 is an apocalyptic number.

130305442 is a deficient number, since it is larger than the sum of its proper divisors (85649630).

130305442 is a wasteful number, since it uses less digits than its factorization.

130305442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166673.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 130305442 is about 11415.1409102122. The cubic root of 130305442 is about 506.9761370191.

Adding to 130305442 its reverse (244503031), we get a palindrome (374808473).

The spelling of 130305442 in words is "one hundred thirty million, three hundred five thousand, four hundred forty-two".