1805026 has 8 divisors (see below), whose sum is σ = 2866860. Its totient is φ = 849408.

The previous prime is 1805003. The next prime is 1805039. The reversal of 1805026 is 6205081.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1782225 + 22801 = 1335^2 + 151^2 .

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1804988 and 1805006.

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 3 ways as a sum of consecutive naturals, for example, 26511 + ... + 26578.

2^1805026 is an apocalyptic number.

1805026 is a deficient number, since it is larger than the sum of its proper divisors (1061834).

1805026 is a wasteful number, since it uses less digits than its factorization.

1805026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53108.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1805026 is about 1343.5125604177. The cubic root of 1805026 is about 121.7571537608.

The spelling of 1805026 in words is "one million, eight hundred five thousand, twenty-six".