256214484 has 72 divisors (see below), whose sum is σ = 666207360. Its totient is φ = 82985472.

The previous prime is 256214479. The next prime is 256214509. The reversal of 256214484 is 484412652.

256214484 is a `hidden beast` number, since 2 + 562 + 14 + 4 + 84 = 666.

256214484 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×256214484² = 131291723622772512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 275332 + ... + 276260.

It is an arithmetic number, because the mean of its divisors is an integer number (9252880).

Almost surely, 2^256214484 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 256214484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333103680).

256214484 is an abundant number, since it is smaller than the sum of its proper divisors (409992876).

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

256214484 is a wasteful number, since it uses less digits than its factorization.

256214484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149 (or 1144 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 256214484 is about 16006.7012216759. The cubic root of 256214484 is about 635.1377005194.

The spelling of 256214484 in words is "two hundred fifty-six million, two hundred fourteen thousand, four hundred eighty-four".