394222395 has 24 divisors (see below), whose sum is σ = 733737744. Its totient is φ = 180215616.

The previous prime is 394222391. The next prime is 394222399. The reversal of 394222395 is 593222493.

It is an interprime number because it is at equal distance from previous prime (394222391) and next prime (394222399).

It is not a de Polignac number, because 394222395 - 2² = 394222391 is a prime.

It is a super-2 number, since 2×394222395² = 310822593439072050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (394222391) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 267444 + ... + 268913.

It is an arithmetic number, because the mean of its divisors is an integer number (30572406).

Almost surely, 2^394222395 is an apocalyptic number.

394222395 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

394222395 is a deficient number, since it is larger than the sum of its proper divisors (339515349).

394222395 is a wasteful number, since it uses less digits than its factorization.

394222395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536379 (or 536372 counting only the distinct ones).

The product of its digits is 116640, while the sum is 39.

The square root of 394222395 is about 19855.0345000959. The cubic root of 394222395 is about 733.2416015883.

The spelling of 394222395 in words is "three hundred ninety-four million, two hundred twenty-two thousand, three hundred ninety-five".