2256866392 has 32 divisors (see below), whose sum is σ = 4618998720. Its totient is φ = 1025252640.

The previous prime is 2256866347. The next prime is 2256866441. The reversal of 2256866392 is 2936686522.

It is a super-2 number, since 2×2256866392² = 10186891822678195328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168403 + ... + 181309.

It is an arithmetic number, because the mean of its divisors is an integer number (144343710).

Almost surely, 2^2256866392 is an apocalyptic number.

2256866392 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2256866392 is an abundant number, since it is smaller than the sum of its proper divisors (2362132328).

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

2256866392 is a wasteful number, since it uses less digits than its factorization.

2256866392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14911 (or 14907 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 49.

The square root of 2256866392 is about 47506.4878937604. The cubic root of 2256866392 is about 1311.7023092070.

The spelling of 2256866392 in words is "two billion, two hundred fifty-six million, eight hundred sixty-six thousand, three hundred ninety-two".