20201006 has 16 divisors (see below), whose sum is σ = 34787040. Its totient is φ = 8618400.

The previous prime is 20200993. The next prime is 20201021. The reversal of 20201006 is 60010202.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 56 + ... + 6356.

It is an arithmetic number, because the mean of its divisors is an integer number (2174190).

Almost surely, 2^20201006 is an apocalyptic number.

20201006 is a deficient number, since it is larger than the sum of its proper divisors (14586034).

20201006 is a wasteful number, since it uses less digits than its factorization.

20201006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6539.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 20201006 is about 4494.5529254866. The cubic root of 20201006 is about 272.3480891648.

Adding to 20201006 its reverse (60010202), we get a palindrome (80211208).

The spelling of 20201006 in words is "twenty million, two hundred one thousand, six".