20395001 has 8 divisors (see below), whose sum is σ = 22581984. Its totient is φ = 18263520.

The previous prime is 20394991. The next prime is 20395003. The reversal of 20395001 is 10059302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20395001 - 2⁶ = 20394937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20395003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13100 + ... + 14573.

It is an arithmetic number, because the mean of its divisors is an integer number (2822748).

Almost surely, 2^20395001 is an apocalyptic number.

It is an amenable number.

20395001 is a deficient number, since it is larger than the sum of its proper divisors (2186983).

20395001 is a wasteful number, since it uses less digits than its factorization.

20395001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27751.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 20395001 is about 4516.0824837463. The cubic root of 20395001 is about 273.2171207670.

The spelling of 20395001 in words is "twenty million, three hundred ninety-five thousand, one".