256433322 has 16 divisors (see below), whose sum is σ = 513025632. Its totient is φ = 85451280.

The previous prime is 256433299. The next prime is 256433323. The reversal of 256433322 is 223334652.

It is a self number, because there is not a number n which added to its sum of digits gives 256433322.

It is not an unprimeable number, because it can be changed into a prime (256433323) 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, 29497 + ... + 37187.

It is an arithmetic number, because the mean of its divisors is an integer number (32064102).

Almost surely, 2^256433322 is an apocalyptic number.

256433322 is an abundant number, since it is smaller than the sum of its proper divisors (256592310).

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

256433322 is a wasteful number, since it uses less digits than its factorization.

256433322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13253.

The product of its digits is 25920, while the sum is 30.

The square root of 256433322 is about 16013.5355871213. The cubic root of 256433322 is about 635.3184770687.

Adding to 256433322 its reverse (223334652), we get a palindrome (479767974).

The spelling of 256433322 in words is "two hundred fifty-six million, four hundred thirty-three thousand, three hundred twenty-two".