1858225 has 12 divisors (see below), whose sum is σ = 2321280. Its totient is φ = 1475600.

The previous prime is 1858217. The next prime is 1858249. The reversal of 1858225 is 5228581.

It is not a de Polignac number, because 1858225 - 2³ = 1858217 is a prime.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 5820 + ... + 6130.

It is an arithmetic number, because the mean of its divisors is an integer number (193440).

2^1858225 is an apocalyptic number.

It is an amenable number.

1858225 is a deficient number, since it is larger than the sum of its proper divisors (463055).

1858225 is a wasteful number, since it uses less digits than its factorization.

1858225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560 (or 555 counting only the distinct ones).

The product of its digits is 6400, while the sum is 31.

The square root of 1858225 is about 1363.1672677995. The cubic root of 1858225 is about 122.9417619290.

The spelling of 1858225 in words is "one million, eight hundred fifty-eight thousand, two hundred twenty-five".