18801056 has 12 divisors (see below), whose sum is σ = 37014642. Its totient is φ = 9400512.

The previous prime is 18801047. The next prime is 18801067. The reversal of 18801056 is 65010881.

It can be written as a sum of positive squares in only one way, i.e., 11424400 + 7376656 = 3380^2 + 2716^2 .

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 as a sum of consecutive naturals, namely, 293735 + ... + 293798.

Almost surely, 2^18801056 is an apocalyptic number.

18801056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18801056 is a deficient number, since it is larger than the sum of its proper divisors (18213586).

18801056 is an equidigital number, since it uses as much as digits as its factorization.

18801056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587543 (or 587535 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 18801056 is about 4336.0184501452. The cubic root of 18801056 is about 265.9055575177.

The spelling of 18801056 in words is "eighteen million, eight hundred one thousand, fifty-six".