20338195 has 4 divisors (see below), whose sum is σ = 24405840. Its totient is φ = 16270552.

The previous prime is 20338181. The next prime is 20338207. The reversal of 20338195 is 59183302.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59183302 = 2 ⋅29591651.

It is a cyclic number.

It is not a de Polignac number, because 20338195 - 2¹⁵ = 20305427 is a prime.

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, 2033815 + ... + 2033824.

It is an arithmetic number, because the mean of its divisors is an integer number (6101460).

Almost surely, 2^20338195 is an apocalyptic number.

20338195 is a deficient number, since it is larger than the sum of its proper divisors (4067645).

20338195 is an equidigital number, since it uses as much as digits as its factorization.

20338195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4067644.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 20338195 is about 4509.7887977155. The cubic root of 20338195 is about 272.9632218879.

The spelling of 20338195 in words is "twenty million, three hundred thirty-eight thousand, one hundred ninety-five".