30665950 has 48 divisors (see below), whose sum is σ = 66808224. Its totient is φ = 10252800.

The previous prime is 30665941. The next prime is 30665953. The reversal of 30665950 is 5956603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30665953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13282 + ... + 15418.

It is an arithmetic number, because the mean of its divisors is an integer number (1391838).

Almost surely, 2^30665950 is an apocalyptic number.

30665950 is an abundant number, since it is smaller than the sum of its proper divisors (36142274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30665950 is a wasteful number, since it uses less digits than its factorization.

30665950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2197 (or 2192 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 34.

The square root of 30665950 is about 5537.6845341713. The cubic root of 30665950 is about 313.0056241270.

The spelling of 30665950 in words is "thirty million, six hundred sixty-five thousand, nine hundred fifty".