20259343 has 8 divisors (see below), whose sum is σ = 22766688. Its totient is φ = 17887584.

The previous prime is 20259341. The next prime is 20259347. The reversal of 20259343 is 34395202.

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

It is not a de Polignac number, because 20259343 - 2¹ = 20259341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20259341) 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, 33580 + ... + 34177.

It is an arithmetic number, because the mean of its divisors is an integer number (2845836).

Almost surely, 2^20259343 is an apocalyptic number.

20259343 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20259343 is a deficient number, since it is larger than the sum of its proper divisors (2507345).

20259343 is a wasteful number, since it uses less digits than its factorization.

20259343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67793.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 20259343 is about 4501.0379913971. The cubic root of 20259343 is about 272.6100018812.

It can be divided in two parts, 20259 and 343, that added together give a palindrome (20602).

The spelling of 20259343 in words is "twenty million, two hundred fifty-nine thousand, three hundred forty-three".