20106369 has 12 divisors (see below), whose sum is σ = 29411200. Its totient is φ = 13234104.

The previous prime is 20106337. The next prime is 20106371. The reversal of 20106369 is 96360102.

It is a happy number.

20106369 is a `hidden beast` number, since 20 + 1 + 0 + 636 + 9 = 666.

It is not a de Polignac number, because 20106369 - 2⁵ = 20106337 is a prime.

It is a super-2 number, since 2×20106369² = 808532148728322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20106319) 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, 13429 + ... + 14850.

Almost surely, 2^20106369 is an apocalyptic number.

It is an amenable number.

20106369 is a deficient number, since it is larger than the sum of its proper divisors (9304831).

20106369 is a wasteful number, since it uses less digits than its factorization.

20106369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28364 (or 28361 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 20106369 is about 4484.0126003391. The cubic root of 20106369 is about 271.9221275418.

The spelling of 20106369 in words is "twenty million, one hundred six thousand, three hundred sixty-nine".