30240228 has 24 divisors (see below), whose sum is σ = 70721280. Its totient is φ = 10057120.

The previous prime is 30240209. The next prime is 30240251. The reversal of 30240228 is 82204203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3118 + ... + 8378.

It is an arithmetic number, because the mean of its divisors is an integer number (2946720).

Almost surely, 2^30240228 is an apocalyptic number.

It is an amenable number.

30240228 is an abundant number, since it is smaller than the sum of its proper divisors (40481052).

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

30240228 is a wasteful number, since it uses less digits than its factorization.

30240228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5747 (or 5745 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 30240228 is about 5499.1115646075. Note that the first 3 decimals coincide. The cubic root of 30240228 is about 311.5504291042.

The spelling of 30240228 in words is "thirty million, two hundred forty thousand, two hundred twenty-eight".