1825980 has 48 divisors (see below), whose sum is σ = 5508384. Its totient is φ = 449280.

The previous prime is 1825969. The next prime is 1826003. The reversal of 1825980 is 895281.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 391 + ... + 1950.

It is an arithmetic number, because the mean of its divisors is an integer number (114758).

2^1825980 is an apocalyptic number.

1825980 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 1825980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2754192).

1825980 is an abundant number, since it is smaller than the sum of its proper divisors (3682404).

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

1825980 is a wasteful number, since it uses less digits than its factorization.

1825980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2366 (or 2364 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 33.

The square root of 1825980 is about 1351.2882742035. The cubic root of 1825980 is about 122.2264895969.

The spelling of 1825980 in words is "one million, eight hundred twenty-five thousand, nine hundred eighty".