396940346 has 8 divisors (see below), whose sum is σ = 649538784. Its totient is φ = 180427420.

The previous prime is 396940331. The next prime is 396940351. The reversal of 396940346 is 643049693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 396940297 and 396940306.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9021350 + ... + 9021393.

It is an arithmetic number, because the mean of its divisors is an integer number (81192348).

Almost surely, 2^396940346 is an apocalyptic number.

396940346 is a deficient number, since it is larger than the sum of its proper divisors (252598438).

396940346 is a wasteful number, since it uses less digits than its factorization.

396940346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18042756.

The product of its (nonzero) digits is 419904, while the sum is 44.

The square root of 396940346 is about 19923.3618147139. The cubic root of 396940346 is about 734.9228456505.

The spelling of 396940346 in words is "three hundred ninety-six million, nine hundred forty thousand, three hundred forty-six".