20378795 has 4 divisors (see below), whose sum is σ = 24454560. Its totient is φ = 16303032.

The previous prime is 20378791. The next prime is 20378797. The reversal of 20378795 is 59787302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 59787302 = 2 ⋅29893651.

It is a cyclic number.

It is not a de Polignac number, because 20378795 - 2² = 20378791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20378791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2037875 + ... + 2037884.

It is an arithmetic number, because the mean of its divisors is an integer number (6113640).

Almost surely, 2^20378795 is an apocalyptic number.

20378795 is a deficient number, since it is larger than the sum of its proper divisors (4075765).

20378795 is an equidigital number, since it uses as much as digits as its factorization.

20378795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4075764.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 20378795 is about 4514.2878729651. The cubic root of 20378795 is about 273.1447348925.

The spelling of 20378795 in words is "twenty million, three hundred seventy-eight thousand, seven hundred ninety-five".