305681342 has 8 divisors (see below), whose sum is σ = 458664600. Its totient is φ = 152793144.

The previous prime is 305681261. The next prime is 305681347. The reversal of 305681342 is 243186503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 305681299 and 305681308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305681347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15092 + ... + 28967.

It is an arithmetic number, because the mean of its divisors is an integer number (57333075).

Almost surely, 2^305681342 is an apocalyptic number.

305681342 is a deficient number, since it is larger than the sum of its proper divisors (152983258).

305681342 is a wasteful number, since it uses less digits than its factorization.

305681342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47530.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 305681342 is about 17483.7450793587. The cubic root of 305681342 is about 673.6324149779.

The spelling of 305681342 in words is "three hundred five million, six hundred eighty-one thousand, three hundred forty-two".