20305852 has 12 divisors (see below), whose sum is σ = 40611760. Its totient is φ = 8702496.

The previous prime is 20305843. The next prime is 20305861. The reversal of 20305852 is 25850302.

It is an interprime number because it is at equal distance from previous prime (20305843) and next prime (20305861).

20305852 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362577 + ... + 362632.

Almost surely, 2^20305852 is an apocalyptic number.

It is an amenable number.

20305852 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20305852 is a wasteful number, since it uses less digits than its factorization.

20305852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725220 (or 725218 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 20305852 is about 4506.2015045934. The cubic root of 20305852 is about 272.8184510357.

The spelling of 20305852 in words is "twenty million, three hundred five thousand, eight hundred fifty-two".