2878530 has 32 divisors (see below), whose sum is σ = 6955200. Its totient is φ = 762432.

The previous prime is 2878451. The next prime is 2878537. The reversal of 2878530 is 358782.

2878530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2878491 and 2878500.

It is not an unprimeable number, because it can be changed into a prime (2878537) 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 15 ways as a sum of consecutive naturals, for example, 6661 + ... + 7079.

It is an arithmetic number, because the mean of its divisors is an integer number (217350).

2^2878530 is an apocalyptic number.

2878530 is an abundant number, since it is smaller than the sum of its proper divisors (4076670).

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

2878530 is a wasteful number, since it uses less digits than its factorization.

2878530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 2878530 is about 1696.6231166644. The cubic root of 2878530 is about 142.2515214250.

The spelling of 2878530 in words is "two million, eight hundred seventy-eight thousand, five hundred thirty".