1860980 has 36 divisors (see below), whose sum is σ = 4301220. Its totient is φ = 675840.

The previous prime is 1860979. The next prime is 1860983. The reversal of 1860980 is 890681.

It can be written as a sum of positive squares in 2 ways, for example, as 698896 + 1162084 = 836^2 + 1078^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1860983) 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 11 ways as a sum of consecutive naturals, for example, 2036 + ... + 2804.

2^1860980 is an apocalyptic number.

1860980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1860980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2150610).

1860980 is an abundant number, since it is smaller than the sum of its proper divisors (2440240).

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

1860980 is a wasteful number, since it uses less digits than its factorization.

1860980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800 (or 787 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 1860980 is about 1364.1774078176. The cubic root of 1860980 is about 123.0024896493.

Subtracting from 1860980 its reverse (890681), we obtain a cube (970299 = 99³).

The spelling of 1860980 in words is "one million, eight hundred sixty thousand, nine hundred eighty".