2043280 has 20 divisors (see below), whose sum is σ = 4750812. Its totient is φ = 817280.

The previous prime is 2043277. The next prime is 2043289. The reversal of 2043280 is 823402.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 824464 + 1218816 = 908^2 + 1104^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (2043289) 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 3 ways as a sum of consecutive naturals, for example, 12691 + ... + 12850.

2^2043280 is an apocalyptic number.

2043280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2043280 is an abundant number, since it is smaller than the sum of its proper divisors (2707532).

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

2043280 is a wasteful number, since it uses less digits than its factorization.

2043280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25554 (or 25548 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2043280 is about 1429.4334542048. The cubic root of 2043280 is about 126.8944500907.

Adding to 2043280 its reverse (823402), we get a palindrome (2866682).

The spelling of 2043280 in words is "two million, forty-three thousand, two hundred eighty".