256452 has 48 divisors (see below), whose sum is σ = 709632. Its totient is φ = 70560.

The previous prime is 256441. The next prime is 256469. The reversal of 256452 is 254652.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3577 + ... + 3647.

It is an arithmetic number, because the mean of its divisors is an integer number (14784).

2²⁵⁶⁴⁵² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354816).

256452 is an abundant number, since it is smaller than the sum of its proper divisors (453180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256452 is a wasteful number, since it uses less digits than its factorization.

256452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 126 counting only the distinct ones).

The product of its digits is 2400, while the sum is 24.

The square root of 256452 is about 506.4109003566. The cubic root of 256452 is about 63.5333901729.

Adding to 256452 its product of digits (2400), we get a palindrome (258852).

The spelling of 256452 in words is "two hundred fifty-six thousand, four hundred fifty-two".