395690401 has 4 divisors (see below), whose sum is σ = 396064404. Its totient is φ = 395316400.

The previous prime is 395690377. The next prime is 395690437. The reversal of 395690401 is 104096593.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 346704400 + 48986001 = 18620^2 + 6999^2 .

It is a cyclic number.

It is not a de Polignac number, because 395690401 - 2⁵ = 395690369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (395690461) 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, 185410 + ... + 187531.

It is an arithmetic number, because the mean of its divisors is an integer number (99016101).

Almost surely, 2^395690401 is an apocalyptic number.

It is an amenable number.

395690401 is a deficient number, since it is larger than the sum of its proper divisors (374003).

395690401 is a wasteful number, since it uses less digits than its factorization.

395690401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374002.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 395690401 is about 19891.9682535439. The cubic root of 395690401 is about 734.1506229408.

The spelling of 395690401 in words is "three hundred ninety-five million, six hundred ninety thousand, four hundred one".