395967394 has 4 divisors (see below), whose sum is σ = 593951094. Its totient is φ = 197983696.

The previous prime is 395967361. The next prime is 395967419. The reversal of 395967394 is 493769593.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 493769593 = 6329 ⋅78017.

It can be written as a sum of positive squares in only one way, i.e., 345030625 + 50936769 = 18575^2 + 7137^2 .

It is a super-2 number, since 2×395967394² = 313580354222302472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98991847 + ... + 98991850.

Almost surely, 2^395967394 is an apocalyptic number.

395967394 is a deficient number, since it is larger than the sum of its proper divisors (197983700).

395967394 is a wasteful number, since it uses less digits than its factorization.

395967394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197983699.

The product of its digits is 5511240, while the sum is 55.

The square root of 395967394 is about 19898.9294686925. The cubic root of 395967394 is about 734.3218908060.

The spelling of 395967394 in words is "three hundred ninety-five million, nine hundred sixty-seven thousand, three hundred ninety-four".