30405852 has 36 divisors (see below), whose sum is σ = 80906280. Its totient is φ = 9601632.

The previous prime is 30405797. The next prime is 30405901. The reversal of 30405852 is 25850403.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21543 + ... + 22910.

Almost surely, 2^30405852 is an apocalyptic number.

It is an amenable number.

30405852 is an abundant number, since it is smaller than the sum of its proper divisors (50500428).

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

30405852 is a wasteful number, since it uses less digits than its factorization.

30405852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44482 (or 44477 counting only the distinct ones).

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

The square root of 30405852 is about 5514.1501611762. The cubic root of 30405852 is about 312.1181751547.

The spelling of 30405852 in words is "thirty million, four hundred five thousand, eight hundred fifty-two".