30216256 has 28 divisors (see below), whose sum is σ = 68527168. Its totient is φ = 12949632.

The previous prime is 30216239. The next prime is 30216257. The reversal of 30216256 is 65261203.

It is a tau number, because it is divible by the number of its divisors (28).

It is a self number, because there is not a number n which added to its sum of digits gives 30216256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30216257) 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, 33276 + ... + 34171.

Almost surely, 2^30216256 is an apocalyptic number.

It is an amenable number.

30216256 is an abundant number, since it is smaller than the sum of its proper divisors (38310912).

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

30216256 is an equidigital number, since it uses as much as digits as its factorization.

30216256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67466 (or 67456 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 30216256 is about 5496.9315076686. The cubic root of 30216256 is about 311.4680833712.

Adding to 30216256 its reverse (65261203), we get a palindrome (95477459).

The spelling of 30216256 in words is "thirty million, two hundred sixteen thousand, two hundred fifty-six".