396043999 has 8 divisors (see below), whose sum is σ = 448957040. Its totient is φ = 346337856.

The previous prime is 396043993. The next prime is 396044027. The reversal of 396043999 is 999340693.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396043999 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 (396043993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 801462 + ... + 801955.

It is an arithmetic number, because the mean of its divisors is an integer number (56119630).

Almost surely, 2^396043999 is an apocalyptic number.

396043999 is a deficient number, since it is larger than the sum of its proper divisors (52913041).

396043999 is a wasteful number, since it uses less digits than its factorization.

396043999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603449.

The product of its (nonzero) digits is 1417176, while the sum is 52.

The square root of 396043999 is about 19900.8542278969. The cubic root of 396043999 is about 734.3692424332.

The spelling of 396043999 in words is "three hundred ninety-six million, forty-three thousand, nine hundred ninety-nine".