2985780 has 48 divisors (see below), whose sum is σ = 9555840. Its totient is φ = 682368.

The previous prime is 2985751. The next prime is 2985781. The reversal of 2985780 is 875892.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2985781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3135 + ... + 3974.

It is an arithmetic number, because the mean of its divisors is an integer number (199080).

2^2985780 is an apocalyptic number.

2985780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2985780 is an abundant number, since it is smaller than the sum of its proper divisors (6570060).

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

2985780 is a wasteful number, since it uses less digits than its factorization.

2985780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7128 (or 7126 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 2985780 is about 1727.9409712140. The cubic root of 2985780 is about 143.9967206043.

The spelling of 2985780 in words is "two million, nine hundred eighty-five thousand, seven hundred eighty".