395138356 has 6 divisors (see below), whose sum is σ = 691492130. Its totient is φ = 197569176.

The previous prime is 395138347. The next prime is 395138371. The reversal of 395138356 is 653831593.

It can be written as a sum of positive squares in only one way, i.e., 205635600 + 189502756 = 14340^2 + 13766^2 .

It is a super-2 number, since 2×395138356² = 312268640764765472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49392291 + ... + 49392298.

Almost surely, 2^395138356 is an apocalyptic number.

It is an amenable number.

395138356 is a deficient number, since it is larger than the sum of its proper divisors (296353774).

395138356 is a wasteful number, since it uses less digits than its factorization.

395138356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98784593 (or 98784591 counting only the distinct ones).

The product of its digits is 291600, while the sum is 43.

The square root of 395138356 is about 19878.0873325378. The cubic root of 395138356 is about 733.8090488192.

The spelling of 395138356 in words is "three hundred ninety-five million, one hundred thirty-eight thousand, three hundred fifty-six".