20385483 has 16 divisors (see below), whose sum is σ = 28571136. Its totient is φ = 12912480.

The previous prime is 20385481. The next prime is 20385493. The reversal of 20385483 is 38458302.

It is not a de Polignac number, because 20385483 - 2¹ = 20385481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20385481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2638 + ... + 6908.

It is an arithmetic number, because the mean of its divisors is an integer number (1785696).

Almost surely, 2^20385483 is an apocalyptic number.

20385483 is a deficient number, since it is larger than the sum of its proper divisors (8185653).

20385483 is a wasteful number, since it uses less digits than its factorization.

20385483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4354.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 20385483 is about 4515.0285713382. The cubic root of 20385483 is about 273.1746122263.

The spelling of 20385483 in words is "twenty million, three hundred eighty-five thousand, four hundred eighty-three".