396418199 has 4 divisors (see below), whose sum is σ = 402916920. Its totient is φ = 389919480.

The previous prime is 396418177. The next prime is 396418213. The reversal of 396418199 is 991814693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 991814693 = 29947 ⋅33119.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396418199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396417199) 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, 3249269 + ... + 3249390.

It is an arithmetic number, because the mean of its divisors is an integer number (100729230).

Almost surely, 2^396418199 is an apocalyptic number.

396418199 is a deficient number, since it is larger than the sum of its proper divisors (6498721).

396418199 is an equidigital number, since it uses as much as digits as its factorization.

396418199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6498720.

The product of its digits is 419904, while the sum is 50.

The square root of 396418199 is about 19910.2536146580. The cubic root of 396418199 is about 734.6004578777.

The spelling of 396418199 in words is "three hundred ninety-six million, four hundred eighteen thousand, one hundred ninety-nine".