1098256 has 20 divisors (see below), whose sum is σ = 2156112. Its totient is φ = 541856.

The previous prime is 1098233. The next prime is 1098269. The reversal of 1098256 is 6528901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 915 + ... + 1741.

2^1098256 is an apocalyptic number.

1098256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1098256 is a deficient number, since it is larger than the sum of its proper divisors (1057856).

1098256 is an equidigital number, since it uses as much as digits as its factorization.

1098256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918 (or 912 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1098256 is about 1047.9770989864. The cubic root of 1098256 is about 103.1734282490.

The spelling of 1098256 in words is "one million, ninety-eight thousand, two hundred fifty-six".