394255957 has 8 divisors (see below), whose sum is σ = 408810240. Its totient is φ = 379765680.

The previous prime is 394255919. The next prime is 394255969. The reversal of 394255957 is 759552493.

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

It is a cyclic number.

It is not a de Polignac number, because 394255957 - 2¹⁵ = 394223189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 394255957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394255157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3273 + ... + 28270.

It is an arithmetic number, because the mean of its divisors is an integer number (51101280).

Almost surely, 2^394255957 is an apocalyptic number.

It is an amenable number.

394255957 is a deficient number, since it is larger than the sum of its proper divisors (14554283).

394255957 is a wasteful number, since it uses less digits than its factorization.

394255957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32003.

The product of its digits is 1701000, while the sum is 49.

The square root of 394255957 is about 19855.8796581768. The cubic root of 394255957 is about 733.2624090958.

The spelling of 394255957 in words is "three hundred ninety-four million, two hundred fifty-five thousand, nine hundred fifty-seven".