394196869 has 8 divisors (see below), whose sum is σ = 430466400. Its totient is φ = 357999600.

The previous prime is 394196863. The next prime is 394196879. The reversal of 394196869 is 968691493.

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 394196869 - 2¹¹ = 394194821 is a prime.

It is a super-2 number, since 2×394196869² = 310782343058806322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394196863) 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, 6319 + ... + 28780.

It is an arithmetic number, because the mean of its divisors is an integer number (53808300).

Almost surely, 2^394196869 is an apocalyptic number.

It is an amenable number.

394196869 is a deficient number, since it is larger than the sum of its proper divisors (36269531).

394196869 is a wasteful number, since it uses less digits than its factorization.

394196869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36131.

The product of its digits is 2519424, while the sum is 55.

The square root of 394196869 is about 19854.3916804318. The cubic root of 394196869 is about 733.2257753869.

The spelling of 394196869 in words is "three hundred ninety-four million, one hundred ninety-six thousand, eight hundred sixty-nine".