305940134 has 16 divisors (see below), whose sum is σ = 471517200. Its totient is φ = 148821504.

The previous prime is 305940133. The next prime is 305940139. The reversal of 305940134 is 431049503.

It is a junction number, because it is equal to n+sod(n) for n = 305940097 and 305940106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305940133) 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, 1919 + ... + 24810.

It is an arithmetic number, because the mean of its divisors is an integer number (29469825).

Almost surely, 2^305940134 is an apocalyptic number.

305940134 is a deficient number, since it is larger than the sum of its proper divisors (165577066).

305940134 is a wasteful number, since it uses less digits than its factorization.

305940134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26887.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 305940134 is about 17491.1444451185. The cubic root of 305940134 is about 673.8224620221.

Adding to 305940134 its reverse (431049503), we get a palindrome (736989637).

The spelling of 305940134 in words is "three hundred five million, nine hundred forty thousand, one hundred thirty-four".