2780060 has 24 divisors (see below), whose sum is σ = 5873280. Its totient is φ = 1105344.

The previous prime is 2780053. The next prime is 2780077. The reversal of 2780060 is 600872.

It is an Ulam number.

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, 4277 + ... + 4883.

It is an arithmetic number, because the mean of its divisors is an integer number (244720).

2^2780060 is an apocalyptic number.

2780060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2780060 is an abundant number, since it is smaller than the sum of its proper divisors (3093220).

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

2780060 is a wasteful number, since it uses less digits than its factorization.

2780060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845 (or 843 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 2780060 is about 1667.3511927605. The cubic root of 2780060 is about 140.6105983605.

The spelling of 2780060 in words is "two million, seven hundred eighty thousand, sixty".