30225812 has 6 divisors (see below), whose sum is σ = 52895178. Its totient is φ = 15112904.

The previous prime is 30225799. The next prime is 30225817. The reversal of 30225812 is 21852203.

It can be written as a sum of positive squares in only one way, i.e., 25542916 + 4682896 = 5054^2 + 2164^2 .

It is a super-2 number, since 2×30225812² = 1827199422118688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30225817) 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, 3778223 + ... + 3778230.

It is an arithmetic number, because the mean of its divisors is an integer number (8815863).

Almost surely, 2^30225812 is an apocalyptic number.

It is an amenable number.

30225812 is a deficient number, since it is larger than the sum of its proper divisors (22669366).

30225812 is a wasteful number, since it uses less digits than its factorization.

30225812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7556457 (or 7556455 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 30225812 is about 5497.8006511695. The cubic root of 30225812 is about 311.5009142123.

The spelling of 30225812 in words is "thirty million, two hundred twenty-five thousand, eight hundred twelve".