394399033 has 8 divisors (see below), whose sum is σ = 451407168. Its totient is φ = 337557264.

The previous prime is 394399003. The next prime is 394399039. The reversal of 394399033 is 330993493.

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-394399033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394399039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36466 + ... + 46027.

It is an arithmetic number, because the mean of its divisors is an integer number (56425896).

Almost surely, 2^394399033 is an apocalyptic number.

It is an amenable number.

394399033 is a deficient number, since it is larger than the sum of its proper divisors (57008135).

394399033 is an equidigital number, since it uses as much as digits as its factorization.

394399033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83183.

The product of its (nonzero) digits is 236196, while the sum is 43.

The square root of 394399033 is about 19859.4821936525. The cubic root of 394399033 is about 733.3510989957.

The spelling of 394399033 in words is "three hundred ninety-four million, three hundred ninety-nine thousand, thirty-three".