30055842 has 24 divisors (see below), whose sum is σ = 66508416. Its totient is φ = 9805176.

The previous prime is 30055841. The next prime is 30055843. The reversal of 30055842 is 24855003.

It is an interprime number because it is at equal distance from previous prime (30055841) and next prime (30055843).

It is not an unprimeable number, because it can be changed into a prime (30055841) 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 11 ways as a sum of consecutive naturals, for example, 16918 + ... + 18609.

It is an arithmetic number, because the mean of its divisors is an integer number (2771184).

Almost surely, 2^30055842 is an apocalyptic number.

30055842 is an abundant number, since it is smaller than the sum of its proper divisors (36452574).

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

30055842 is a wasteful number, since it uses less digits than its factorization.

30055842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35582 (or 35579 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 30055842 is about 5482.3208589064. The cubic root of 30055842 is about 310.9159245166.

The spelling of 30055842 in words is "thirty million, fifty-five thousand, eight hundred forty-two".