4256492 has 12 divisors (see below), whose sum is σ = 7493136. Its totient is φ = 2115600.

The previous prime is 4256491. The next prime is 4256501. The reversal of 4256492 is 2946524.

It is a d-powerful number, because it can be written as 4 + 2²¹ + 5⁵ + 6 + 4 + 9⁵ + 2²¹ .

It is not an unprimeable number, because it can be changed into a prime (4256491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2384 + ... + 3767.

It is an arithmetic number, because the mean of its divisors is an integer number (624428).

Almost surely, 2^4256492 is an apocalyptic number.

It is an amenable number.

4256492 is a deficient number, since it is larger than the sum of its proper divisors (3236644).

4256492 is a wasteful number, since it uses less digits than its factorization.

4256492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6328 (or 6326 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 4256492 is about 2063.1267532558. The cubic root of 4256492 is about 162.0630248094.

Adding to 4256492 its sum of digits (32), we get a palindrome (4256524).

The spelling of 4256492 in words is "four million, two hundred fifty-six thousand, four hundred ninety-two".