395744413 has 4 divisors (see below), whose sum is σ = 397386748. Its totient is φ = 394102080.

The previous prime is 395744389. The next prime is 395744441. The reversal of 395744413 is 314447593.

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 168428484 + 227315929 = 12978^2 + 15077^2 .

It is a cyclic number.

It is not a de Polignac number, because 395744413 - 2⁵ = 395744381 is a prime.

It is a super-2 number, since 2×395744413² = 313227280841429138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395744473) 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, 820806 + ... + 821287.

It is an arithmetic number, because the mean of its divisors is an integer number (99346687).

Almost surely, 2^395744413 is an apocalyptic number.

It is an amenable number.

395744413 is a deficient number, since it is larger than the sum of its proper divisors (1642335).

395744413 is a wasteful number, since it uses less digits than its factorization.

395744413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642334.

The product of its digits is 181440, while the sum is 40.

The square root of 395744413 is about 19893.3258405929. The cubic root of 395744413 is about 734.1840254353.

The spelling of 395744413 in words is "three hundred ninety-five million, seven hundred forty-four thousand, four hundred thirteen".