1830280 has 16 divisors (see below), whose sum is σ = 4118220. Its totient is φ = 732096.

The previous prime is 1830263. The next prime is 1830287. The reversal of 1830280 is 820381.

It can be written as a sum of positive squares in 2 ways, for example, as 1726596 + 103684 = 1314^2 + 322^2 .

It is not an unprimeable number, because it can be changed into a prime (1830287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22839 + ... + 22918.

2^1830280 is an apocalyptic number.

1830280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1830280 is an abundant number, since it is smaller than the sum of its proper divisors (2287940).

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

1830280 is a wasteful number, since it uses less digits than its factorization.

1830280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45768 (or 45764 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1830280 is about 1352.8784128664. The cubic root of 1830280 is about 122.3223580961.

The spelling of 1830280 in words is "one million, eight hundred thirty thousand, two hundred eighty".