4721256 has 48 divisors (see below), whose sum is σ = 13347360. Its totient is φ = 1504800.

The previous prime is 4721243. The next prime is 4721261. The reversal of 4721256 is 6521274.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 231 + ... + 3081.

It is an arithmetic number, because the mean of its divisors is an integer number (278070).

Almost surely, 2^4721256 is an apocalyptic number.

4721256 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4721256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6673680).

4721256 is an abundant number, since it is smaller than the sum of its proper divisors (8626104).

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

4721256 is a wasteful number, since it uses less digits than its factorization.

4721256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2886 (or 2879 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 4721256 is about 2172.8451394428. The cubic root of 4721256 is about 167.7590082101.

It can be divided in two parts, 472 and 1256, that added together give a cube (1728 = 12³).

The spelling of 4721256 in words is "four million, seven hundred twenty-one thousand, two hundred fifty-six".