20169914 has 4 divisors (see below), whose sum is σ = 30254874. Its totient is φ = 10084956.

The previous prime is 20169901. The next prime is 20169923. The reversal of 20169914 is 41996102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41996102 = 2 ⋅20998051.

It can be written as a sum of positive squares in only one way, i.e., 15864289 + 4305625 = 3983^2 + 2075^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5042477 + ... + 5042480.

Almost surely, 2^20169914 is an apocalyptic number.

20169914 is a deficient number, since it is larger than the sum of its proper divisors (10084960).

20169914 is a wasteful number, since it uses less digits than its factorization.

20169914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10084959.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 20169914 is about 4491.0927400801. The cubic root of 20169914 is about 272.2082909310.

The spelling of 20169914 in words is "twenty million, one hundred sixty-nine thousand, nine hundred fourteen".