30205012 has 12 divisors (see below), whose sum is σ = 53079796. Its totient is φ = 15039360.

The previous prime is 30205009. The next prime is 30205027. The reversal of 30205012 is 21050203.

It can be written as a sum of positive squares in 2 ways, for example, as 28026436 + 2178576 = 5294^2 + 1476^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30204983 and 30205001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14703 + ... + 16630.

Almost surely, 2^30205012 is an apocalyptic number.

It is an amenable number.

30205012 is a deficient number, since it is larger than the sum of its proper divisors (22874784).

30205012 is a wasteful number, since it uses less digits than its factorization.

30205012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31578 (or 31576 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 30205012 is about 5495.9086600852. The cubic root of 30205012 is about 311.4294443284.

Adding to 30205012 its reverse (21050203), we get a palindrome (51255215).

The spelling of 30205012 in words is "thirty million, two hundred five thousand, twelve".