395216901 has 48 divisors (see below), whose sum is σ = 648648000. Its totient is φ = 239355648.

The previous prime is 395216881. The next prime is 395216903. The reversal of 395216901 is 109612593.

It is not a de Polignac number, because 395216901 - 2⁶ = 395216837 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395216903) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 118150 + ... + 121448.

It is an arithmetic number, because the mean of its divisors is an integer number (13513500).

Almost surely, 2^395216901 is an apocalyptic number.

It is an amenable number.

395216901 is a deficient number, since it is larger than the sum of its proper divisors (253431099).

395216901 is a wasteful number, since it uses less digits than its factorization.

395216901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3360 (or 3348 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 395216901 is about 19880.0629023150. The cubic root of 395216901 is about 733.8576674125.

The spelling of 395216901 in words is "three hundred ninety-five million, two hundred sixteen thousand, nine hundred one".