1861050 has 48 divisors (see below), whose sum is σ = 4865760. Its totient is φ = 469440.

The previous prime is 1861039. The next prime is 1861061. The reversal of 1861050 is 501681.

It is an interprime number because it is at equal distance from previous prime (1861039) and next prime (1861061).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2524 + ... + 3176.

It is an arithmetic number, because the mean of its divisors is an integer number (101370).

2^1861050 is an apocalyptic number.

1861050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1861050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2432880).

1861050 is an abundant number, since it is smaller than the sum of its proper divisors (3004710).

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

1861050 is a wasteful number, since it uses less digits than its factorization.

1861050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687 (or 682 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 1861050 is about 1364.2030640634. The cubic root of 1861050 is about 123.0040318594.

The spelling of 1861050 in words is "one million, eight hundred sixty-one thousand, fifty".