30860312 has 32 divisors (see below), whose sum is σ = 67044000. Its totient is φ = 13042944.

The previous prime is 30860309. The next prime is 30860329. The reversal of 30860312 is 21306803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314 + ... + 7862.

It is an arithmetic number, because the mean of its divisors is an integer number (2095125).

Almost surely, 2^30860312 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 30860312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33522000).

30860312 is an abundant number, since it is smaller than the sum of its proper divisors (36183688).

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

30860312 is a wasteful number, since it uses less digits than its factorization.

30860312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7635 (or 7631 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 30860312 is about 5555.2058467711. The cubic root of 30860312 is about 313.6655126129.

The spelling of 30860312 in words is "thirty million, eight hundred sixty thousand, three hundred twelve".