1802226856 has 8 divisors (see below), whose sum is σ = 3379175370. Its totient is φ = 901113424.

The previous prime is 1802226851. The next prime is 1802226857. The reversal of 1802226856 is 6586222081.

It can be written as a sum of positive squares in only one way, i.e., 1756448100 + 45778756 = 41910^2 + 6766^2 .

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 (1802226851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112639171 + ... + 112639186.

Almost surely, 2^1802226856 is an apocalyptic number.

It is an amenable number.

1802226856 is a deficient number, since it is larger than the sum of its proper divisors (1576948514).

1802226856 is a wasteful number, since it uses less digits than its factorization.

1802226856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225278363 (or 225278359 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 1802226856 is about 42452.6425090359. The cubic root of 1802226856 is about 1216.9418289843.

The spelling of 1802226856 in words is "one billion, eight hundred two million, two hundred twenty-six thousand, eight hundred fifty-six".