20006170 has 16 divisors (see below), whose sum is σ = 36602568. Its totient is φ = 7871040.

The previous prime is 20006149. The next prime is 20006177. The reversal of 20006170 is 7160002.

It can be written as a sum of positive squares in 4 ways, for example, as 16883881 + 3122289 = 4109^2 + 1767^2 .

It is not an unprimeable number, because it can be changed into a prime (20006177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15789 + ... + 17008.

Almost surely, 2^20006170 is an apocalyptic number.

20006170 is a deficient number, since it is larger than the sum of its proper divisors (16596398).

20006170 is a wasteful number, since it uses less digits than its factorization.

20006170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32865.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 20006170 is about 4472.8257287759. The cubic root of 20006170 is about 271.4696720507.

Adding to 20006170 its reverse (7160002), we get a palindrome (27166172).

The spelling of 20006170 in words is "twenty million, six thousand, one hundred seventy".