4978256 has 20 divisors (see below), whose sum is σ = 9978900. Its totient is φ = 2403072.

The previous prime is 4978241. The next prime is 4978277. The reversal of 4978256 is 6528794.

It can be written as a sum of positive squares in 2 ways, for example, as 3182656 + 1795600 = 1784^2 + 1340^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4901 + ... + 5828.

It is an arithmetic number, because the mean of its divisors is an integer number (498945).

Almost surely, 2^4978256 is an apocalyptic number.

It is an amenable number.

4978256 is an abundant number, since it is smaller than the sum of its proper divisors (5000644).

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

4978256 is a wasteful number, since it uses less digits than its factorization.

4978256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10766 (or 10760 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 4978256 is about 2231.2005736822. The cubic root of 4978256 is about 170.7493563597.

The spelling of 4978256 in words is "four million, nine hundred seventy-eight thousand, two hundred fifty-six".