20480343 has 8 divisors (see below), whose sum is σ = 29407728. Its totient is φ = 12603264.

The previous prime is 20480329. The next prime is 20480353. The reversal of 20480343 is 34308402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-20480343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20480353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262530 + ... + 262607.

It is an arithmetic number, because the mean of its divisors is an integer number (3675966).

Almost surely, 2^20480343 is an apocalyptic number.

20480343 is a deficient number, since it is larger than the sum of its proper divisors (8927385).

20480343 is a wasteful number, since it uses less digits than its factorization.

20480343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525153.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 20480343 is about 4525.5212959393. The cubic root of 20480343 is about 273.5976788601.

Adding to 20480343 its reverse (34308402), we get a palindrome (54788745).

The spelling of 20480343 in words is "twenty million, four hundred eighty thousand, three hundred forty-three".