20001334 has 4 divisors (see below), whose sum is σ = 30002004. Its totient is φ = 10000666.

The previous prime is 20001307. The next prime is 20001341. The reversal of 20001334 is 43310002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43310002 = 2 ⋅21655001.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 5000332 + ... + 5000335.

It is an arithmetic number, because the mean of its divisors is an integer number (7500501).

Almost surely, 2^20001334 is an apocalyptic number.

20001334 is a deficient number, since it is larger than the sum of its proper divisors (10000670).

20001334 is a wasteful number, since it uses less digits than its factorization.

20001334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10000669.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 20001334 is about 4472.2850982468. The cubic root of 20001334 is about 271.4477965805.

Adding to 20001334 its reverse (43310002), we get a palindrome (63311336).

The spelling of 20001334 in words is "twenty million, one thousand, three hundred thirty-four".