2256815368 has 8 divisors (see below), whose sum is σ = 4231528830. Its totient is φ = 1128407680.

The previous prime is 2256815329. The next prime is 2256815369. The reversal of 2256815368 is 8635186522.

It can be written as a sum of positive squares in only one way, i.e., 2163924324 + 92891044 = 46518^2 + 9638^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2256815369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141050953 + ... + 141050968.

Almost surely, 2^2256815368 is an apocalyptic number.

It is an amenable number.

2256815368 is a deficient number, since it is larger than the sum of its proper divisors (1974713462).

2256815368 is a wasteful number, since it uses less digits than its factorization.

2256815368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282101927 (or 282101923 counting only the distinct ones).

The product of its digits is 691200, while the sum is 46.

The square root of 2256815368 is about 47505.9508693385. The cubic root of 2256815368 is about 1311.6924239958.

The spelling of 2256815368 in words is "two billion, two hundred fifty-six million, eight hundred fifteen thousand, three hundred sixty-eight".