1850556 has 12 divisors (see below), whose sum is σ = 4317992. Its totient is φ = 616848.

The previous prime is 1850521. The next prime is 1850561. The reversal of 1850556 is 6550581.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77095 + ... + 77118.

2^1850556 is an apocalyptic number.

It is an amenable number.

1850556 is an abundant number, since it is smaller than the sum of its proper divisors (2467436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1850556 is a wasteful number, since it uses less digits than its factorization.

1850556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154220 (or 154218 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

The square root of 1850556 is about 1360.3514251839. The cubic root of 1850556 is about 122.7723995166.

The spelling of 1850556 in words is "one million, eight hundred fifty thousand, five hundred fifty-six".