394857453 has 16 divisors (see below), whose sum is σ = 566588736. Its totient is φ = 243690240.

The previous prime is 394857413. The next prime is 394857461. The reversal of 394857453 is 354758493.

It is not a de Polignac number, because 394857453 - 2⁹ = 394856941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394857413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60351 + ... + 66572.

It is an arithmetic number, because the mean of its divisors is an integer number (35411796).

Almost surely, 2^394857453 is an apocalyptic number.

It is an amenable number.

394857453 is a deficient number, since it is larger than the sum of its proper divisors (171731283).

394857453 is a wasteful number, since it uses less digits than its factorization.

394857453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127004.

The product of its digits is 1814400, while the sum is 48.

The square root of 394857453 is about 19871.0204317745. The cubic root of 394857453 is about 733.6351198438.

The spelling of 394857453 in words is "three hundred ninety-four million, eight hundred fifty-seven thousand, four hundred fifty-three".