1828280 has 16 divisors (see below), whose sum is σ = 4113720. Its totient is φ = 731296.

The previous prime is 1828279. The next prime is 1828283. The reversal of 1828280 is 828281.

It is a super-3 number, since 3×1828280³ = 18333668737582656000, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1828283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22814 + ... + 22893.

2^1828280 is an apocalyptic number.

1828280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1828280 is an abundant number, since it is smaller than the sum of its proper divisors (2285440).

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

1828280 is a wasteful number, since it uses less digits than its factorization.

1828280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45718 (or 45714 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 1828280 is about 1352.1390461044. The cubic root of 1828280 is about 122.2777867954.

Subtracting from 1828280 its reverse (828281), we obtain a palindrome (999999).

The spelling of 1828280 in words is "one million, eight hundred twenty-eight thousand, two hundred eighty".