30664205 has 24 divisors (see below), whose sum is σ = 43480800. Its totient is φ = 20579520.

The previous prime is 30664201. The next prime is 30664211. The reversal of 30664205 is 50246603.

It is not a de Polignac number, because 30664205 - 2² = 30664201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30664201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7646 + ... + 10944.

It is an arithmetic number, because the mean of its divisors is an integer number (1811700).

Almost surely, 2^30664205 is an apocalyptic number.

It is an amenable number.

30664205 is a deficient number, since it is larger than the sum of its proper divisors (12816595).

30664205 is a wasteful number, since it uses less digits than its factorization.

30664205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3341 (or 3328 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 30664205 is about 5537.5269751036. The cubic root of 30664205 is about 312.9996869755. Note that the first 3 decimals are identical.

The spelling of 30664205 in words is "thirty million, six hundred sixty-four thousand, two hundred five".