4394257 has 16 divisors (see below), whose sum is σ = 5249664. Its totient is φ = 3600000.

The previous prime is 4394249. The next prime is 4394267. The reversal of 4394257 is 7524934.

It is a cyclic number.

It is not a de Polignac number, because 4394257 - 2³ = 4394249 is a prime.

It is an Ulam number.

Its product of digits (30240) is a multiple of the sum of its prime divisors (360).

It is not an unprimeable number, because it can be changed into a prime (4394227) 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, 17382 + ... + 17632.

It is an arithmetic number, because the mean of its divisors is an integer number (328104).

Almost surely, 2^4394257 is an apocalyptic number.

It is an amenable number.

4394257 is a deficient number, since it is larger than the sum of its proper divisors (855407).

4394257 is a wasteful number, since it uses less digits than its factorization.

4394257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360.

The product of its digits is 30240, while the sum is 34.

The square root of 4394257 is about 2096.2483154436. The cubic root of 4394257 is about 163.7929297151.

The spelling of 4394257 in words is "four million, three hundred ninety-four thousand, two hundred fifty-seven".