396268849 has 4 divisors (see below), whose sum is σ = 398280564. Its totient is φ = 394257136.

The previous prime is 396268841. The next prime is 396268889. The reversal of 396268849 is 948862693.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 948862693 = 569 ⋅1667597.

It can be written as a sum of positive squares in 2 ways, for example, as 190633249 + 205635600 = 13807^2 + 14340^2 .

It is a cyclic number.

It is not a de Polignac number, because 396268849 - 2³ = 396268841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 396268849.

It is not an unprimeable number, because it can be changed into a prime (396268841) 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, 1005562 + ... + 1005955.

It is an arithmetic number, because the mean of its divisors is an integer number (99570141).

Almost surely, 2^396268849 is an apocalyptic number.

It is an amenable number.

396268849 is a deficient number, since it is larger than the sum of its proper divisors (2011715).

396268849 is a wasteful number, since it uses less digits than its factorization.

396268849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011714.

The product of its digits is 4478976, while the sum is 55.

The square root of 396268849 is about 19906.5026812848. The cubic root of 396268849 is about 734.5081930595.

The spelling of 396268849 in words is "three hundred ninety-six million, two hundred sixty-eight thousand, eight hundred forty-nine".