394942463 has 8 divisors (see below), whose sum is σ = 407260896. Its totient is φ = 382752000.

The previous prime is 394942459. The next prime is 394942501. The reversal of 394942463 is 364249493.

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 394942463 - 2² = 394942459 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 (394942433) 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, 25706 + ... + 38087.

It is an arithmetic number, because the mean of its divisors is an integer number (50907612).

Almost surely, 2^394942463 is an apocalyptic number.

394942463 is a deficient number, since it is larger than the sum of its proper divisors (12318433).

394942463 is a wasteful number, since it uses less digits than its factorization.

394942463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63985.

The product of its digits is 559872, while the sum is 44.

The square root of 394942463 is about 19873.1593613094. The cubic root of 394942463 is about 733.6877648730.

The spelling of 394942463 in words is "three hundred ninety-four million, nine hundred forty-two thousand, four hundred sixty-three".