306728374 has 32 divisors (see below), whose sum is σ = 487111680. Its totient is φ = 144698400.

The previous prime is 306728363. The next prime is 306728393. The reversal of 306728374 is 473827603.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 309019 + ... + 310009.

It is an arithmetic number, because the mean of its divisors is an integer number (15222240).

Almost surely, 2^306728374 is an apocalyptic number.

306728374 is a deficient number, since it is larger than the sum of its proper divisors (180383306).

306728374 is a wasteful number, since it uses less digits than its factorization.

306728374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156.

The product of its (nonzero) digits is 169344, while the sum is 40.

The square root of 306728374 is about 17513.6624953206. The cubic root of 306728374 is about 674.4006561015.

The spelling of 306728374 in words is "three hundred six million, seven hundred twenty-eight thousand, three hundred seventy-four".