306894225 has 96 divisors (see below), whose sum is σ = 582962688. Its totient is φ = 141120000.

The previous prime is 306894209. The next prime is 306894229. The reversal of 306894225 is 522498603.

It is a happy number.

It is not a de Polignac number, because 306894225 - 2⁴ = 306894209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (306894229) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 1454370 + ... + 1454580.

It is an arithmetic number, because the mean of its divisors is an integer number (6072528).

Almost surely, 2^306894225 is an apocalyptic number.

It is an amenable number.

306894225 is a deficient number, since it is larger than the sum of its proper divisors (276068463).

306894225 is a wasteful number, since it uses less digits than its factorization.

306894225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319 (or 314 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 306894225 is about 17518.3967588361. The cubic root of 306894225 is about 674.5221858537.

The spelling of 306894225 in words is "three hundred six million, eight hundred ninety-four thousand, two hundred twenty-five".