20000395 has 4 divisors (see below), whose sum is σ = 24000480. Its totient is φ = 16000312.

The previous prime is 20000389. The next prime is 20000429. The reversal of 20000395 is 59300002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59300002 = 2 ⋅29650001.

It is a cyclic number.

It is not a de Polignac number, because 20000395 - 2¹⁷ = 19869323 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, 2000035 + ... + 2000044.

It is an arithmetic number, because the mean of its divisors is an integer number (6000120).

Almost surely, 2^20000395 is an apocalyptic number.

20000395 is a deficient number, since it is larger than the sum of its proper divisors (4000085).

20000395 is an equidigital number, since it uses as much as digits as its factorization.

20000395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4000084.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 20000395 is about 4472.1801171241. The cubic root of 20000395 is about 271.4435486393.

Adding to 20000395 its reverse (59300002), we get a palindrome (79300397).

The spelling of 20000395 in words is "twenty million, three hundred ninety-five", and thus it is an aban number.