30875228 has 12 divisors (see below), whose sum is σ = 56875560. Its totient is φ = 14625072.

The previous prime is 30875191. The next prime is 30875237. The reversal of 30875228 is 82257803.

It is a happy number.

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, 203051 + ... + 203202.

It is an arithmetic number, because the mean of its divisors is an integer number (4739630).

Almost surely, 2^30875228 is an apocalyptic number.

30875228 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

30875228 is a deficient number, since it is larger than the sum of its proper divisors (26000332).

30875228 is a wasteful number, since it uses less digits than its factorization.

30875228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406276 (or 406274 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 30875228 is about 5556.5482090953. The cubic root of 30875228 is about 313.7160400909.

The spelling of 30875228 in words is "thirty million, eight hundred seventy-five thousand, two hundred twenty-eight".