20334745 has 4 divisors (see below), whose sum is σ = 24401700. Its totient is φ = 16267792.

The previous prime is 20334733. The next prime is 20334757. The reversal of 20334745 is 54743302.

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

It is an interprime number because it is at equal distance from previous prime (20334733) and next prime (20334757).

It can be written as a sum of positive squares in 2 ways, for example, as 15586704 + 4748041 = 3948^2 + 2179^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20334745 is a prime.

It is an unprimeable number.

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, 2033470 + ... + 2033479.

It is an arithmetic number, because the mean of its divisors is an integer number (6100425).

Almost surely, 2^20334745 is an apocalyptic number.

It is an amenable number.

20334745 is a deficient number, since it is larger than the sum of its proper divisors (4066955).

20334745 is an equidigital number, since it uses as much as digits as its factorization.

20334745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4066954.

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 20334745 is about 4509.4062802103. The cubic root of 20334745 is about 272.9477866216.

The spelling of 20334745 in words is "twenty million, three hundred thirty-four thousand, seven hundred forty-five".