395558401 has 4 divisors (see below), whose sum is σ = 452066752. Its totient is φ = 339050052.

The previous prime is 395558389. The next prime is 395558407. The reversal of 395558401 is 104855593.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 395558401 - 2⁵ = 395558369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (395558407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28254165 + ... + 28254178.

It is an arithmetic number, because the mean of its divisors is an integer number (113016688).

Almost surely, 2^395558401 is an apocalyptic number.

It is an amenable number.

395558401 is a deficient number, since it is larger than the sum of its proper divisors (56508351).

395558401 is an equidigital number, since it uses as much as digits as its factorization.

395558401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56508350.

The product of its (nonzero) digits is 108000, while the sum is 40.

The square root of 395558401 is about 19888.6500547423. The cubic root of 395558401 is about 734.0689777455.

The spelling of 395558401 in words is "three hundred ninety-five million, five hundred fifty-eight thousand, four hundred one".