20326169 has 8 divisors (see below), whose sum is σ = 21578400. Its totient is φ = 19080256.

The previous prime is 20326157. The next prime is 20326171. The reversal of 20326169 is 96162302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20326169 - 2¹² = 20322073 is a prime.

It is a super-2 number, since 2×20326169² = 826306292433122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20326069) 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, 6182 + ... + 8880.

It is an arithmetic number, because the mean of its divisors is an integer number (2697300).

Almost surely, 2^20326169 is an apocalyptic number.

It is an amenable number.

20326169 is a deficient number, since it is larger than the sum of its proper divisors (1252231).

20326169 is a wasteful number, since it uses less digits than its factorization.

20326169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3159.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 20326169 is about 4508.4552786958. The cubic root of 20326169 is about 272.9094101160.

The spelling of 20326169 in words is "twenty million, three hundred twenty-six thousand, one hundred sixty-nine".