4257869 has 16 divisors (see below), whose sum is σ = 5364096. Its totient is φ = 3310560.

The previous prime is 4257833. The next prime is 4257889. The reversal of 4257869 is 9687524.

It is not a de Polignac number, because 4257869 - 2⁸ = 4257613 is a prime.

It is a super-2 number, since 2×4257869² = 36258896842322, which contains 22 as substring.

It is a d-powerful number, because it can be written as 4 + 2²² + 5² + 7⁵ + 8² + 6⁶ + 9 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4257889) 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, 9089 + ... + 9545.

It is an arithmetic number, because the mean of its divisors is an integer number (335256).

Almost surely, 2^4257869 is an apocalyptic number.

It is an amenable number.

4257869 is a deficient number, since it is larger than the sum of its proper divisors (1106227).

4257869 is an equidigital number, since it uses as much as digits as its factorization.

4257869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497 (or 475 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 4257869 is about 2063.4604430422. The cubic root of 4257869 is about 162.0804990366.

The spelling of 4257869 in words is "four million, two hundred fifty-seven thousand, eight hundred sixty-nine".