302040256 has 56 divisors (see below), whose sum is σ = 700958720. Its totient is φ = 126427392.

The previous prime is 302040253. The next prime is 302040257. The reversal of 302040256 is 652040203.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (302040253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11425 + ... + 27103.

It is an arithmetic number, because the mean of its divisors is an integer number (12517120).

Almost surely, 2^302040256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 302040256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (350479360).

302040256 is an abundant number, since it is smaller than the sum of its proper divisors (398918464).

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

302040256 is a wasteful number, since it uses less digits than its factorization.

302040256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15741 (or 15731 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 302040256 is about 17379.3053946353. The cubic root of 302040256 is about 670.9470945307.

Adding to 302040256 its reverse (652040203), we get a palindrome (954080459).

The spelling of 302040256 in words is "three hundred two million, forty thousand, two hundred fifty-six".