20395936 has 24 divisors (see below), whose sum is σ = 43805664. Its totient is φ = 9270720.

The previous prime is 20395933. The next prime is 20395951. The reversal of 20395936 is 63959302.

It is a junction number, because it is equal to n+sod(n) for n = 20395895 and 20395904.

It is not an unprimeable number, because it can be changed into a prime (20395931) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 28620 + ... + 29323.

It is an arithmetic number, because the mean of its divisors is an integer number (1825236).

Almost surely, 2^20395936 is an apocalyptic number.

It is an amenable number.

20395936 is an abundant number, since it is smaller than the sum of its proper divisors (23409728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20395936 is a wasteful number, since it uses less digits than its factorization.

20395936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57964 (or 57956 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 37.

The square root of 20395936 is about 4516.1860014840. The cubic root of 20395936 is about 273.2212958768.

The spelling of 20395936 in words is "twenty million, three hundred ninety-five thousand, nine hundred thirty-six".