30648212 has 72 divisors (see below), whose sum is σ = 68064192. Its totient is φ = 11784960.

The previous prime is 30648193. The next prime is 30648221. The reversal of 30648212 is 21284603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 457403 + ... + 457469.

It is an arithmetic number, because the mean of its divisors is an integer number (945336).

Almost surely, 2^30648212 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 30648212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34032096).

30648212 is an abundant number, since it is smaller than the sum of its proper divisors (37415980).

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

30648212 is a wasteful number, since it uses less digits than its factorization.

30648212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 30648212 is about 5536.0827305957. The cubic root of 30648212 is about 312.9452622316.

The spelling of 30648212 in words is "thirty million, six hundred forty-eight thousand, two hundred twelve".