30319893 has 16 divisors (see below), whose sum is σ = 45536640. Its totient is φ = 19935072.

The previous prime is 30319873. The next prime is 30319901. The reversal of 30319893 is 39891303.

It is not a de Polignac number, because 30319893 - 2¹⁸ = 30057749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30319843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5721 + ... + 9662.

It is an arithmetic number, because the mean of its divisors is an integer number (2846040).

Almost surely, 2^30319893 is an apocalyptic number.

It is an amenable number.

30319893 is a deficient number, since it is larger than the sum of its proper divisors (15216747).

30319893 is a wasteful number, since it uses less digits than its factorization.

30319893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15465 (or 15459 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 30319893 is about 5506.3502431284. The cubic root of 30319893 is about 311.8237725213.

The spelling of 30319893 in words is "thirty million, three hundred nineteen thousand, eight hundred ninety-three".