394287419 has 8 divisors (see below), whose sum is σ = 407319552. Its totient is φ = 381274920.

The previous prime is 394287379. The next prime is 394287427. The reversal of 394287419 is 914782493.

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 394287419 - 2⁸ = 394287163 is a prime.

It is a super-2 number, since 2×394287419² = 310925137563363122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394287319) 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, 43712 + ... + 51954.

It is an arithmetic number, because the mean of its divisors is an integer number (50914944).

Almost surely, 2^394287419 is an apocalyptic number.

394287419 is a deficient number, since it is larger than the sum of its proper divisors (13032133).

394287419 is a wasteful number, since it uses less digits than its factorization.

394287419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9817.

The product of its digits is 435456, while the sum is 47.

The square root of 394287419 is about 19856.6719014038. The cubic root of 394287419 is about 733.2819135893.

The spelling of 394287419 in words is "three hundred ninety-four million, two hundred eighty-seven thousand, four hundred nineteen".