394404275 has 12 divisors (see below), whose sum is σ = 502280352. Its totient is φ = 306995040.

The previous prime is 394404271. The next prime is 394404287. The reversal of 394404275 is 572404493.

It is not a de Polignac number, because 394404275 - 2² = 394404271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394404271) 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 11 ways as a sum of consecutive naturals, for example, 212267 + ... + 214116.

It is an arithmetic number, because the mean of its divisors is an integer number (41856696).

Almost surely, 2^394404275 is an apocalyptic number.

394404275 is a deficient number, since it is larger than the sum of its proper divisors (107876077).

394404275 is a wasteful number, since it uses less digits than its factorization.

394404275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426430 (or 426425 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 394404275 is about 19859.6141704717. The cubic root of 394404275 is about 733.3543479974.

The spelling of 394404275 in words is "three hundred ninety-four million, four hundred four thousand, two hundred seventy-five".