1830380 has 24 divisors (see below), whose sum is σ = 3900960. Its totient is φ = 721280.

The previous prime is 1830379. The next prime is 1830391. The reversal of 1830380 is 830381.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 776 + ... + 2064.

It is an arithmetic number, because the mean of its divisors is an integer number (162540).

2^1830380 is an apocalyptic number.

1830380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1830380 is an abundant number, since it is smaller than the sum of its proper divisors (2070580).

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

1830380 is a wasteful number, since it uses less digits than its factorization.

1830380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369 (or 1367 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1830380 is about 1352.9153705979. The cubic root of 1830380 is about 122.3245858086.

Subtracting from 1830380 its reverse (830381), we obtain a palindrome (999999).

The spelling of 1830380 in words is "one million, eight hundred thirty thousand, three hundred eighty".