256452422 has 4 divisors (see below), whose sum is σ = 384678636. Its totient is φ = 128226210.

The previous prime is 256452421. The next prime is 256452451. The reversal of 256452422 is 224254652.

256452422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256452421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64113104 + ... + 64113107.

It is an arithmetic number, because the mean of its divisors is an integer number (96169659).

Almost surely, 2^256452422 is an apocalyptic number.

256452422 is a deficient number, since it is larger than the sum of its proper divisors (128226214).

256452422 is a wasteful number, since it uses less digits than its factorization.

256452422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128226213.

The product of its digits is 38400, while the sum is 32.

The square root of 256452422 is about 16014.1319465028. The cubic root of 256452422 is about 635.3342502159.

The spelling of 256452422 in words is "two hundred fifty-six million, four hundred fifty-two thousand, four hundred twenty-two".