4781256 has 64 divisors (see below), whose sum is σ = 12640320. Its totient is φ = 1505280.

The previous prime is 4781243. The next prime is 4781323. The reversal of 4781256 is 6521874.

It is an alternating number because its digits alternate between even and odd.

It is a zygodrome in base 5.

It is a congruent number.

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, 42256 + ... + 42368.

It is an arithmetic number, because the mean of its divisors is an integer number (197505).

Almost surely, 2^4781256 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 4781256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6320160).

4781256 is an abundant number, since it is smaller than the sum of its proper divisors (7859064).

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

4781256 is a wasteful number, since it uses less digits than its factorization.

4781256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 202 counting only the distinct ones).

The product of its digits is 13440, while the sum is 33.

The square root of 4781256 is about 2186.6083325552. The cubic root of 4781256 is about 168.4666729898.

The spelling of 4781256 in words is "four million, seven hundred eighty-one thousand, two hundred fifty-six".