20205334 has 4 divisors (see below), whose sum is σ = 30308004. Its totient is φ = 10102666.

The previous prime is 20205331. The next prime is 20205343. The reversal of 20205334 is 43350202.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20205331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5051332 + ... + 5051335.

It is an arithmetic number, because the mean of its divisors is an integer number (7577001).

Almost surely, 2^20205334 is an apocalyptic number.

20205334 is a deficient number, since it is larger than the sum of its proper divisors (10102670).

20205334 is a wasteful number, since it uses less digits than its factorization.

20205334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10102669.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 20205334 is about 4495.0343713925. The cubic root of 20205334 is about 272.3675376742.

Adding to 20205334 its reverse (43350202), we get a palindrome (63555536).

The spelling of 20205334 in words is "twenty million, two hundred five thousand, three hundred thirty-four".