30601216 has 52 divisors (see below), whose sum is σ = 63431104. Its totient is φ = 14745600.

The previous prime is 30601169. The next prime is 30601223. The reversal of 30601216 is 61210603.

It is a junction number, because it is equal to n+sod(n) for n = 30601193 and 30601202.

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, 126856 + ... + 127096.

Almost surely, 2^30601216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30601216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31715552).

30601216 is an abundant number, since it is smaller than the sum of its proper divisors (32829888).

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

30601216 is an equidigital number, since it uses as much as digits as its factorization.

30601216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 30601216 is about 5531.8365847158. The cubic root of 30601216 is about 312.7852235396.

Adding to 30601216 its reverse (61210603), we get a palindrome (91811819).

The spelling of 30601216 in words is "thirty million, six hundred one thousand, two hundred sixteen".