256222748 has 24 divisors (see below), whose sum is σ = 452466000. Its totient is φ = 126952448.

The previous prime is 256222727. The next prime is 256222873. The reversal of 256222748 is 847222652.

256222748 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321086 + ... + 321882.

It is an arithmetic number, because the mean of its divisors is an integer number (18852750).

Almost surely, 2^256222748 is an apocalyptic number.

It is an amenable number.

256222748 is a deficient number, since it is larger than the sum of its proper divisors (196243252).

256222748 is a wasteful number, since it uses less digits than its factorization.

256222748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429 (or 1427 counting only the distinct ones).

The product of its digits is 107520, while the sum is 38.

The square root of 256222748 is about 16006.9593614777. The cubic root of 256222748 is about 635.1445290711.

The spelling of 256222748 in words is "two hundred fifty-six million, two hundred twenty-two thousand, seven hundred forty-eight".