395643426 has 8 divisors (see below), whose sum is σ = 791286864. Its totient is φ = 131881140.

The previous prime is 395643407. The next prime is 395643461. The reversal of 395643426 is 624346593.

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

395643426 is an admirable number.

It is a super-3 number, since 3×395643426³ (a number of 27 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32970280 + ... + 32970291.

It is an arithmetic number, because the mean of its divisors is an integer number (98910858).

Almost surely, 2^395643426 is an apocalyptic number.

395643426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

395643426 is a wasteful number, since it uses less digits than its factorization.

395643426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65940576.

The product of its digits is 466560, while the sum is 42.

The square root of 395643426 is about 19890.7874655580. The cubic root of 395643426 is about 734.1215698475.

It can be divided in two parts, 39 and 5643426, that added together give a palindrome (5643465).

The spelling of 395643426 in words is "three hundred ninety-five million, six hundred forty-three thousand, four hundred twenty-six".