306744705 has 16 divisors (see below), whose sum is σ = 545324160. Its totient is φ = 163597104.

The previous prime is 306744631. The next prime is 306744709. The reversal of 306744705 is 507447603.

It is not a de Polignac number, because 306744705 - 2¹⁶ = 306679169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 306744705.

It is not an unprimeable number, because it can be changed into a prime (306744709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1135957 + ... + 1136226.

It is an arithmetic number, because the mean of its divisors is an integer number (34082760).

Almost surely, 2^306744705 is an apocalyptic number.

It is an amenable number.

306744705 is a deficient number, since it is larger than the sum of its proper divisors (238579455).

306744705 is a wasteful number, since it uses less digits than its factorization.

306744705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272197 (or 2272191 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 306744705 is about 17514.1287251179. The cubic root of 306744705 is about 674.4126248254.

The spelling of 306744705 in words is "three hundred six million, seven hundred forty-four thousand, seven hundred five".