256922443 has 8 divisors (see below), whose sum is σ = 268260768. Its totient is φ = 245598144.

The previous prime is 256922437. The next prime is 256922447. The reversal of 256922443 is 344229652.

256922443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 256922443 - 2¹⁷ = 256791371 is a prime.

It is a super-3 number, since 3×256922443³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256922447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54621 + ... + 59137.

It is an arithmetic number, because the mean of its divisors is an integer number (33532596).

Almost surely, 2^256922443 is an apocalyptic number.

256922443 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

256922443 is a deficient number, since it is larger than the sum of its proper divisors (11338325).

256922443 is a wasteful number, since it uses less digits than its factorization.

256922443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7013.

The product of its digits is 103680, while the sum is 37.

The square root of 256922443 is about 16028.8004229886. The cubic root of 256922443 is about 635.7221560733.

The spelling of 256922443 in words is "two hundred fifty-six million, nine hundred twenty-two thousand, four hundred forty-three".