256498 has 16 divisors (see below), whose sum is σ = 427680. Its totient is φ = 114400.

The previous prime is 256493. The next prime is 256499. The reversal of 256498 is 894652.

It is a happy number.

It is a d-powerful number, because it can be written as 2¹⁶ + 5⁶ + 4⁸ + 6⁶ + 9⁵ + 8⁴ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256493) by changing a digit.

256498 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1893 + ... + 2023.

It is an arithmetic number, because the mean of its divisors is an integer number (26730).

2²⁵⁶⁴⁹⁸ is an apocalyptic number.

256498 is a deficient number, since it is larger than the sum of its proper divisors (171182).

256498 is a wasteful number, since it uses less digits than its factorization.

256498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233.

The product of its digits is 17280, while the sum is 34.

The square root of 256498 is about 506.4563159839. The cubic root of 256498 is about 63.5371886241.

It can be divided in two parts, 2564 and 98, that added together give a palindrome (2662).

The spelling of 256498 in words is "two hundred fifty-six thousand, four hundred ninety-eight".