20334813 has 4 divisors (see below), whose sum is σ = 27113088. Its totient is φ = 13556540.

The previous prime is 20334803. The next prime is 20334817. The reversal of 20334813 is 31843302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20334813 - 2⁸ = 20334557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20334817) 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 3 ways as a sum of consecutive naturals, for example, 3389133 + ... + 3389138.

It is an arithmetic number, because the mean of its divisors is an integer number (6778272).

Almost surely, 2^20334813 is an apocalyptic number.

It is an amenable number.

20334813 is a deficient number, since it is larger than the sum of its proper divisors (6778275).

20334813 is an equidigital number, since it uses as much as digits as its factorization.

20334813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6778274.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 20334813 is about 4509.4138199992. The cubic root of 20334813 is about 272.9480908698.

The spelling of 20334813 in words is "twenty million, three hundred thirty-four thousand, eight hundred thirteen".