306742804 has 12 divisors (see below), whose sum is σ = 536932564. Its totient is φ = 153333504.

The previous prime is 306742801. The next prime is 306742811. The reversal of 306742804 is 408247603.

It can be written as a sum of positive squares in 2 ways, for example, as 283989904 + 22752900 = 16852^2 + 4770^2 .

It is a super-2 number, since 2×306742804² = 188182295611564832, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 306742804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306742801) 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, 16882 + ... + 29974.

Almost surely, 2^306742804 is an apocalyptic number.

It is an amenable number.

306742804 is a deficient number, since it is larger than the sum of its proper divisors (230189760).

306742804 is a wasteful number, since it uses less digits than its factorization.

306742804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18954 (or 18952 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 306742804 is about 17514.0744545637. The cubic root of 306742804 is about 674.4112316353.

The spelling of 306742804 in words is "three hundred six million, seven hundred forty-two thousand, eight hundred four".