20210339 has 4 divisors (see below), whose sum is σ = 20242224. Its totient is φ = 20178456.

The previous prime is 20210317. The next prime is 20210369. The reversal of 20210339 is 93301202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20210339 - 2⁸ = 20210083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20210339.

It is not an unprimeable number, because it can be changed into a prime (20210369) 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 3 ways as a sum of consecutive naturals, for example, 14972 + ... + 16265.

It is an arithmetic number, because the mean of its divisors is an integer number (5060556).

Almost surely, 2^20210339 is an apocalyptic number.

20210339 is a deficient number, since it is larger than the sum of its proper divisors (31885).

20210339 is an equidigital number, since it uses as much as digits as its factorization.

20210339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31884.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 20210339 is about 4495.5910623632. The cubic root of 20210339 is about 272.3900249207.

The spelling of 20210339 in words is "twenty million, two hundred ten thousand, three hundred thirty-nine".