309994196 has 12 divisors (see below), whose sum is σ = 571042080. Its totient is φ = 146839320.

The previous prime is 309994189. The next prime is 309994211. The reversal of 309994196 is 691499903.

309994196 = 2304² + 2305² + ... + 2360².

It is a happy number.

309994196 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 2039360 + ... + 2039511.

It is an arithmetic number, because the mean of its divisors is an integer number (47586840).

Almost surely, 2^309994196 is an apocalyptic number.

It is an amenable number.

309994196 is a deficient number, since it is larger than the sum of its proper divisors (261047884).

309994196 is a wasteful number, since it uses less digits than its factorization.

309994196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4078894 (or 4078892 counting only the distinct ones).

The product of its (nonzero) digits is 472392, while the sum is 50.

The square root of 309994196 is about 17606.6520383632. The cubic root of 309994196 is about 676.7857214329.

The spelling of 309994196 in words is "three hundred nine million, nine hundred ninety-four thousand, one hundred ninety-six".