395516449 has 4 divisors (see below), whose sum is σ = 396456340. Its totient is φ = 394576560.

The previous prime is 395516393. The next prime is 395516453. The reversal of 395516449 is 944615593.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 944615593 = 1571 ⋅601283.

It can be written as a sum of positive squares in 2 ways, for example, as 166539025 + 228977424 = 12905^2 + 15132^2 .

It is a cyclic number.

It is not a de Polignac number, because 395516449 - 2¹⁵ = 395483681 is a prime.

It is a super-2 number, since 2×395516449² = 312866522859139202, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 395516399 and 395516408.

It is not an unprimeable number, because it can be changed into a prime (395516249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469314 + ... + 470155.

It is an arithmetic number, because the mean of its divisors is an integer number (99114085).

Almost surely, 2^395516449 is an apocalyptic number.

It is an amenable number.

395516449 is a deficient number, since it is larger than the sum of its proper divisors (939891).

395516449 is an equidigital number, since it uses as much as digits as its factorization.

395516449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 939890.

The product of its digits is 583200, while the sum is 46.

The square root of 395516449 is about 19887.5953548940. The cubic root of 395516449 is about 734.0430256143.

The spelling of 395516449 in words is "three hundred ninety-five million, five hundred sixteen thousand, four hundred forty-nine".