20480383 has 12 divisors (see below), whose sum is σ = 25990632. Its totient is φ = 15958320.

The previous prime is 20480381. The next prime is 20480389. The reversal of 20480383 is 38308402.

It is not a de Polignac number, because 20480383 - 2¹ = 20480381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20480381) 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, 18460 + ... + 19537.

It is an arithmetic number, because the mean of its divisors is an integer number (2165886).

Almost surely, 2^20480383 is an apocalyptic number.

20480383 is a deficient number, since it is larger than the sum of its proper divisors (5510249).

20480383 is a wasteful number, since it uses less digits than its factorization.

20480383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38022 (or 38015 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 20480383 is about 4525.5257153175. The cubic root of 20480383 is about 273.5978569805.

Adding to 20480383 its reverse (38308402), we get a palindrome (58788785).

The spelling of 20480383 in words is "twenty million, four hundred eighty thousand, three hundred eighty-three".