20385482 has 24 divisors (see below), whose sum is σ = 34994316. Its totient is φ = 8851968.

The previous prime is 20385481. The next prime is 20385493. The reversal of 20385482 is 28458302.

It can be written as a sum of positive squares in 6 ways, for example, as 17986081 + 2399401 = 4241^2 + 1549^2 .

It is not an unprimeable number, because it can be changed into a prime (20385481) 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, 6158 + ... + 8870.

Almost surely, 2^20385482 is an apocalyptic number.

20385482 is a deficient number, since it is larger than the sum of its proper divisors (14608834).

20385482 is a wasteful number, since it uses less digits than its factorization.

20385482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2762 (or 2745 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 20385482 is about 4515.0284605969. The cubic root of 20385482 is about 273.1746077594.

The spelling of 20385482 in words is "twenty million, three hundred eighty-five thousand, four hundred eighty-two".