306444668 has 6 divisors (see below), whose sum is σ = 536278176. Its totient is φ = 153222332.

The previous prime is 306444661. The next prime is 306444739. The reversal of 306444668 is 866444603.

It is a super-3 number, since 3×306444668³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (306444661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38305580 + ... + 38305587.

It is an arithmetic number, because the mean of its divisors is an integer number (89379696).

Almost surely, 2^306444668 is an apocalyptic number.

It is an amenable number.

306444668 is a deficient number, since it is larger than the sum of its proper divisors (229833508).

306444668 is a wasteful number, since it uses less digits than its factorization.

306444668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76611171 (or 76611169 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 41.

The square root of 306444668 is about 17505.5610592748. The cubic root of 306444668 is about 674.1926647653.

The spelling of 306444668 in words is "three hundred six million, four hundred forty-four thousand, six hundred sixty-eight".