395992059841 has 9 divisors (see below), whose sum is σ = 460648948899. Its totient is φ = 339417989904.

The previous prime is 395992059829. The next prime is 395992059851. The reversal of 395992059841 is 148950299593.

The square root of 395992059841 is 629279.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 63874980225 + 332117079616 = 252735^2 + 576296^2 .

It is not a de Polignac number, because 395992059841 - 2⁷ = 395992059713 is a prime.

It is a super-2 number, since 2×395992059841² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (395992059851) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4360005 + ... + 4449901.

Almost surely, 2^395992059841 is an apocalyptic number.

395992059841 is the 629279-th square number.

395992059841 is the 314640-th centered octagonal number.

It is an amenable number.

395992059841 is a deficient number, since it is larger than the sum of its proper divisors (64656889058).

395992059841 is an frugal number, since it uses more digits than its factorization.

395992059841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179808 (or 89904 counting only the distinct ones).

The product of its (nonzero) digits is 31492800, while the sum is 64.

Multiplying 395992059841 by its sum of digits (64), we get a square (25343491829824 = 5034232²).

The spelling of 395992059841 in words is "three hundred ninety-five billion, nine hundred ninety-two million, fifty-nine thousand, eight hundred forty-one".