394441867 has 8 divisors (see below), whose sum is σ = 409282496. Its totient is φ = 379821312.

The previous prime is 394441841. The next prime is 394441891. The reversal of 394441867 is 768144493.

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 394441867 - 2¹¹ = 394439819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394441367) 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, 51363 + ... + 58540.

It is an arithmetic number, because the mean of its divisors is an integer number (51160312).

Almost surely, 2^394441867 is an apocalyptic number.

394441867 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

394441867 is the 11467-th hex number.

394441867 is a deficient number, since it is larger than the sum of its proper divisors (14840629).

394441867 is a wasteful number, since it uses less digits than its factorization.

394441867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110037.

The product of its digits is 580608, while the sum is 46.

The square root of 394441867 is about 19860.5605912824. The cubic root of 394441867 is about 733.3776467483.

The spelling of 394441867 in words is "three hundred ninety-four million, four hundred forty-one thousand, eight hundred sixty-seven".