30393860 has 48 divisors (see below), whose sum is σ = 74161920. Its totient is φ = 10247040.

The previous prime is 30393821. The next prime is 30393871. The reversal of 30393860 is 6839303.

It is a happy number.

It is a super-3 number, since 3×30393860³ (a number of 23 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6761 + ... + 10319.

It is an arithmetic number, because the mean of its divisors is an integer number (1545040).

Almost surely, 2^30393860 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 30393860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37080960).

30393860 is an abundant number, since it is smaller than the sum of its proper divisors (43768060).

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

30393860 is a wasteful number, since it uses less digits than its factorization.

30393860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3636 (or 3634 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 30393860 is about 5513.0626696964. The cubic root of 30393860 is about 312.0771368557.

The spelling of 30393860 in words is "thirty million, three hundred ninety-three thousand, eight hundred sixty".