305680334 has 4 divisors (see below), whose sum is σ = 458520504. Its totient is φ = 152840166.

The previous prime is 305680313. The next prime is 305680337. The reversal of 305680334 is 433086503.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 305680334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305680337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76420082 + ... + 76420085.

It is an arithmetic number, because the mean of its divisors is an integer number (114630126).

Almost surely, 2^305680334 is an apocalyptic number.

305680334 is a deficient number, since it is larger than the sum of its proper divisors (152840170).

305680334 is a wasteful number, since it uses less digits than its factorization.

305680334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152840169.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 305680334 is about 17483.7162525591. The cubic root of 305680334 is about 673.6316745312.

The spelling of 305680334 in words is "three hundred five million, six hundred eighty thousand, three hundred thirty-four".