20732006 has 4 divisors (see below), whose sum is σ = 31098012. Its totient is φ = 10366002.

The previous prime is 20732003. The next prime is 20732051. The reversal of 20732006 is 60023702.

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 (20732003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5183000 + ... + 5183003.

It is an arithmetic number, because the mean of its divisors is an integer number (7774503).

Almost surely, 2^20732006 is an apocalyptic number.

20732006 is a deficient number, since it is larger than the sum of its proper divisors (10366006).

20732006 is a wasteful number, since it uses less digits than its factorization.

20732006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10366005.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 20732006 is about 4553.2412631004. The cubic root of 20732006 is about 274.7137782350.

Adding to 20732006 its reverse (60023702), we get a palindrome (80755708).

The spelling of 20732006 in words is "twenty million, seven hundred thirty-two thousand, six".