30813385 has 8 divisors (see below), whose sum is σ = 37152576. Its totient is φ = 24533040.

The previous prime is 30813371. The next prime is 30813389. The reversal of 30813385 is 58331803.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30813385 - 2¹¹ = 30811337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30813389) 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 7 ways as a sum of consecutive naturals, for example, 13549 + ... + 15658.

It is an arithmetic number, because the mean of its divisors is an integer number (4644072).

Almost surely, 2^30813385 is an apocalyptic number.

It is an amenable number.

30813385 is a deficient number, since it is larger than the sum of its proper divisors (6339191).

30813385 is a wasteful number, since it uses less digits than its factorization.

30813385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29423.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 30813385 is about 5550.9805440120. The cubic root of 30813385 is about 313.5064426213.

The spelling of 30813385 in words is "thirty million, eight hundred thirteen thousand, three hundred eighty-five".