1805098 has 8 divisors (see below), whose sum is σ = 2738340. Its totient is φ = 892320.

The previous prime is 1805093. The next prime is 1805117. The reversal of 1805098 is 8905081.

It can be written as a sum of positive squares in 2 ways, for example, as 1605289 + 199809 = 1267^2 + 447^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1805093) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4893 + ... + 5248.

2^1805098 is an apocalyptic number.

1805098 is a deficient number, since it is larger than the sum of its proper divisors (933242).

1805098 is a wasteful number, since it uses less digits than its factorization.

1805098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10232.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 1805098 is about 1343.5393555829. The cubic root of 1805098 is about 121.7587726477.

It can be divided in two parts, 18050 and 98, that multiplied together give a square (1768900 = 1330²).

The spelling of 1805098 in words is "one million, eight hundred five thousand, ninety-eight".