306741249 has 40 divisors (see below), whose sum is σ = 476720640. Its totient is φ = 196344000.

The previous prime is 306741233. The next prime is 306741289. The reversal of 306741249 is 942147603.

It is not a de Polignac number, because 306741249 - 2⁴ = 306741233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (306741289) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 378757 + ... + 379565.

It is an arithmetic number, because the mean of its divisors is an integer number (11918016).

It is a Proth number, since it is equal to 9361 ⋅ 2¹⁵ + 1 and 9361 < 2¹⁵.

Almost surely, 2^306741249 is an apocalyptic number.

306741249 is the 9362-nd nonagonal number.

It is an amenable number.

306741249 is a deficient number, since it is larger than the sum of its proper divisors (169979391).

306741249 is a wasteful number, since it uses less digits than its factorization.

306741249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003 (or 994 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 306741249 is about 17514.0300616392. The cubic root of 306741249 is about 674.4100920147.

The spelling of 306741249 in words is "three hundred six million, seven hundred forty-one thousand, two hundred forty-nine".