30947300 has 72 divisors (see below), whose sum is σ = 70828800. Its totient is φ = 11721600.

The previous prime is 30947261. The next prime is 30947311. The reversal of 30947300 is 374903.

It is a self number, because there is not a number n which added to its sum of digits gives 30947300.

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, 207626 + ... + 207774.

Almost surely, 2^30947300 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 30947300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35414400).

30947300 is an abundant number, since it is smaller than the sum of its proper divisors (39881500).

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

30947300 is a wasteful number, since it uses less digits than its factorization.

30947300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 30947300 is about 5563.0297500553. The cubic root of 30947300 is about 313.9599527002.

The spelling of 30947300 in words is "thirty million, nine hundred forty-seven thousand, three hundred".