30734228 has 12 divisors (see below), whose sum is σ = 61468512. Its totient is φ = 13171800.

The previous prime is 30734227. The next prime is 30734251. The reversal of 30734228 is 82243703.

30734228 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 30734228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30734227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548798 + ... + 548853.

It is an arithmetic number, because the mean of its divisors is an integer number (5122376).

Almost surely, 2^30734228 is an apocalyptic number.

It is an amenable number.

30734228 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30734228 is a wasteful number, since it uses less digits than its factorization.

30734228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1097662 (or 1097660 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 30734228 is about 5543.8459574559. The cubic root of 30734228 is about 313.2377551648.

The spelling of 30734228 in words is "thirty million, seven hundred thirty-four thousand, two hundred twenty-eight".