30205268 has 6 divisors (see below), whose sum is σ = 52859226. Its totient is φ = 15102632.

The previous prime is 30205267. The next prime is 30205289. The reversal of 30205268 is 86250203.

It can be written as a sum of positive squares in only one way, i.e., 15856324 + 14348944 = 3982^2 + 3788^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30205267) 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 as a sum of consecutive naturals, namely, 3775655 + ... + 3775662.

It is an arithmetic number, because the mean of its divisors is an integer number (8809871).

Almost surely, 2^30205268 is an apocalyptic number.

It is an amenable number.

30205268 is a deficient number, since it is larger than the sum of its proper divisors (22653958).

30205268 is a wasteful number, since it uses less digits than its factorization.

30205268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7551321 (or 7551319 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 30205268 is about 5495.9319500882. The cubic root of 30205268 is about 311.4303241572.

The spelling of 30205268 in words is "thirty million, two hundred five thousand, two hundred sixty-eight".