2356228681 has 3 divisors (see below), whose sum is σ = 2356277223. Its totient is φ = 2356180140.

The previous prime is 2356228669. The next prime is 2356228711. The reversal of 2356228681 is 1868226532.

The square root of 2356228681 is 48541.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 34916281 + 2321312400 = 5909^2 + 48180^2 .

It is not a de Polignac number, because 2356228681 - 2²⁷ = 2222010953 is a prime.

It is a super-2 number, since 2×2356228681² = 11103627194333999522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2356228601) by changing a digit.

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 2 ways as a sum of consecutive naturals, for example, 24271 + ... + 72811.

It is an arithmetic number, because the mean of its divisors is an integer number (785425741).

Almost surely, 2^2356228681 is an apocalyptic number.

2356228681 is the 48541-st square number.

2356228681 is the 24271-st centered octagonal number.

It is an amenable number.

2356228681 is a deficient number, since it is larger than the sum of its proper divisors (48542).

2356228681 is an frugal number, since it uses more digits than its factorization.

2356228681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97082 (or 48541 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The cubic root of 2356228681 is about 1330.6764759244.

The spelling of 2356228681 in words is "two billion, three hundred fifty-six million, two hundred twenty-eight thousand, six hundred eighty-one".