30345993 has 24 divisors (see below), whose sum is σ = 47224320. Its totient is φ = 18722880.

The previous prime is 30345979. The next prime is 30346007. The reversal of 30345993 is 39954303.

It is a happy number.

30345993 is a `hidden beast` number, since 30 + 34 + 599 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (30345979) and next prime (30346007).

It is not a de Polignac number, because 30345993 - 2⁶ = 30345929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30345923) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4053 + ... + 8781.

It is an arithmetic number, because the mean of its divisors is an integer number (1967680).

Almost surely, 2^30345993 is an apocalyptic number.

It is an amenable number.

30345993 is a deficient number, since it is larger than the sum of its proper divisors (16878327).

30345993 is a wasteful number, since it uses less digits than its factorization.

30345993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4789 (or 4786 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 36.

The square root of 30345993 is about 5508.7197242190. The cubic root of 30345993 is about 311.9132216748.

The spelling of 30345993 in words is "thirty million, three hundred forty-five thousand, nine hundred ninety-three".