256424202 has 12 divisors (see below), whose sum is σ = 555585810. Its totient is φ = 85474728.

The previous prime is 256424197. The next prime is 256424213. The reversal of 256424202 is 202424652.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 223831521 + 32592681 = 14961^2 + 5709^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7122877 + ... + 7122912.

Almost surely, 2^256424202 is an apocalyptic number.

256424202 is an abundant number, since it is smaller than the sum of its proper divisors (299161608).

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

256424202 is a wasteful number, since it uses less digits than its factorization.

256424202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14245797 (or 14245794 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 256424202 is about 16013.2508254882. The cubic root of 256424202 is about 635.3109453210.

Adding to 256424202 its reverse (202424652), we get a palindrome (458848854).

The spelling of 256424202 in words is "two hundred fifty-six million, four hundred twenty-four thousand, two hundred two".