20612106 has 24 divisors (see below), whose sum is σ = 44744544. Its totient is φ = 6857640.

The previous prime is 20612101. The next prime is 20612129. The reversal of 20612106 is 60121602.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20612101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15321 + ... + 16611.

It is an arithmetic number, because the mean of its divisors is an integer number (1864356).

Almost surely, 2^20612106 is an apocalyptic number.

20612106 is an abundant number, since it is smaller than the sum of its proper divisors (24132438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20612106 is a wasteful number, since it uses less digits than its factorization.

20612106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186 (or 2183 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 20612106 is about 4540.0557265302. The cubic root of 20612106 is about 274.1831673483.

Adding to 20612106 its reverse (60121602), we get a palindrome (80733708).

The spelling of 20612106 in words is "twenty million, six hundred twelve thousand, one hundred six".