394343491 has 8 divisors (see below), whose sum is σ = 398757168. Its totient is φ = 389940000.

The previous prime is 394343483. The next prime is 394343501. The reversal of 394343491 is 194343493.

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 394343491 - 2³ = 394343483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394343291) 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, 96061 + ... + 100081.

It is an arithmetic number, because the mean of its divisors is an integer number (49844646).

Almost surely, 2^394343491 is an apocalyptic number.

394343491 is a deficient number, since it is larger than the sum of its proper divisors (4413677).

394343491 is a wasteful number, since it uses less digits than its factorization.

394343491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5093.

The product of its digits is 139968, while the sum is 40.

The square root of 394343491 is about 19858.0837695886. The cubic root of 394343491 is about 733.3166721880.

The spelling of 394343491 in words is "three hundred ninety-four million, three hundred forty-three thousand, four hundred ninety-one".