20069210 has 16 divisors (see below), whose sum is σ = 41285376. Its totient is φ = 6880848.

The previous prime is 20069209. The next prime is 20069219. The reversal of 20069210 is 1296002.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20069219) by changing a digit.

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, 143282 + ... + 143421.

It is an arithmetic number, because the mean of its divisors is an integer number (2580336).

Almost surely, 2^20069210 is an apocalyptic number.

20069210 is an abundant number, since it is smaller than the sum of its proper divisors (21216166).

20069210 is a wasteful number, since it uses less digits than its factorization.

20069210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286717.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 20069210 is about 4479.8671855313. The cubic root of 20069210 is about 271.7545092542.

The spelling of 20069210 in words is "twenty million, sixty-nine thousand, two hundred ten".