20106236 has 12 divisors (see below), whose sum is σ = 36044400. Its totient is φ = 9807840.

The previous prime is 20106227. The next prime is 20106253. The reversal of 20106236 is 63260102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61136 + ... + 61463.

It is an arithmetic number, because the mean of its divisors is an integer number (3003700).

Almost surely, 2^20106236 is an apocalyptic number.

It is an amenable number.

20106236 is a deficient number, since it is larger than the sum of its proper divisors (15938164).

20106236 is a wasteful number, since it uses less digits than its factorization.

20106236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122644 (or 122642 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 20106236 is about 4483.9977698478. The cubic root of 20106236 is about 271.9215279685.

Adding to 20106236 its sum of digits (20), we get a square (20106256 = 4484²).

Adding to 20106236 its reverse (63260102), we get a palindrome (83366338).

The spelling of 20106236 in words is "twenty million, one hundred six thousand, two hundred thirty-six".