309076342 has 4 divisors (see below), whose sum is σ = 463614516. Its totient is φ = 154538170.

The previous prime is 309076319. The next prime is 309076343. The reversal of 309076342 is 243670903.

309076342 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 243670903 = 7 ⋅34810129.

It is a junction number, because it is equal to n+sod(n) for n = 309076298 and 309076307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309076343) 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 as a sum of consecutive naturals, namely, 77269084 + ... + 77269087.

It is an arithmetic number, because the mean of its divisors is an integer number (115903629).

Almost surely, 2^309076342 is an apocalyptic number.

309076342 is a deficient number, since it is larger than the sum of its proper divisors (154538174).

309076342 is a wasteful number, since it uses less digits than its factorization.

309076342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154538173.

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 309076342 is about 17580.5671694630. The cubic root of 309076342 is about 676.1171018381.

It can be divided in two parts, 30907 and 6342, that added together give a square (37249 = 193²).

The spelling of 309076342 in words is "three hundred nine million, seventy-six thousand, three hundred forty-two".