3005780 has 24 divisors (see below), whose sum is σ = 6364008. Its totient is φ = 1192448.

The previous prime is 3005773. The next prime is 3005809. The reversal of 3005780 is 875003.

It can be written as a sum of positive squares in 4 ways, for example, as 190096 + 2815684 = 436^2 + 1678^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2192 + ... + 3288.

It is an arithmetic number, because the mean of its divisors is an integer number (265167).

Almost surely, 2^3005780 is an apocalyptic number.

It is an amenable number.

3005780 is an abundant number, since it is smaller than the sum of its proper divisors (3358228).

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

3005780 is a wasteful number, since it uses less digits than its factorization.

3005780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243 (or 1241 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 3005780 is about 1733.7185469389. The cubic root of 3005780 is about 144.3175220812.

The spelling of 3005780 in words is "three million, five thousand, seven hundred eighty".