256472 has 8 divisors (see below), whose sum is σ = 480900. Its totient is φ = 128232.

The previous prime is 256471. The next prime is 256483. The reversal of 256472 is 274652.

256472 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256471) 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 as a sum of consecutive naturals, namely, 16022 + ... + 16037.

2²⁵⁶⁴⁷² is an apocalyptic number.

It is an amenable number.

256472 is a deficient number, since it is larger than the sum of its proper divisors (224428).

256472 is a wasteful number, since it uses less digits than its factorization.

256472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32065 (or 32061 counting only the distinct ones).

The product of its digits is 3360, while the sum is 26.

The square root of 256472 is about 506.4306467820. The cubic root of 256472 is about 63.5350417292.

The spelling of 256472 in words is "two hundred fifty-six thousand, four hundred seventy-two".