30566240 has 24 divisors (see below), whose sum is σ = 72213120. Its totient is φ = 12226432.

The previous prime is 30566227. The next prime is 30566251. The reversal of 30566240 is 4266503.

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, 95360 + ... + 95679.

It is an arithmetic number, because the mean of its divisors is an integer number (3008880).

Almost surely, 2^30566240 is an apocalyptic number.

It is an amenable number.

30566240 is an abundant number, since it is smaller than the sum of its proper divisors (41646880).

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

30566240 is a wasteful number, since it uses less digits than its factorization.

30566240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191054 (or 191046 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 30566240 is about 5528.6743438188. The cubic root of 30566240 is about 312.6660109935. Note that the first 3 decimals are identical.

The spelling of 30566240 in words is "thirty million, five hundred sixty-six thousand, two hundred forty".