395391493 has 16 divisors (see below), whose sum is σ = 463351680. Its totient is φ = 330333696.

The previous prime is 395391461. The next prime is 395391511. The reversal of 395391493 is 394193593.

It is not a de Polignac number, because 395391493 - 2⁵ = 395391461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395391193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184653 + ... + 186781.

It is an arithmetic number, because the mean of its divisors is an integer number (28959480).

Almost surely, 2^395391493 is an apocalyptic number.

It is an amenable number.

395391493 is a deficient number, since it is larger than the sum of its proper divisors (67960187).

395391493 is a wasteful number, since it uses less digits than its factorization.

395391493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2796.

The product of its digits is 393660, while the sum is 46.

The square root of 395391493 is about 19884.4535504499. The cubic root of 395391493 is about 733.9657150990.

The spelling of 395391493 in words is "three hundred ninety-five million, three hundred ninety-one thousand, four hundred ninety-three".