2802870 has 64 divisors (see below), whose sum is σ = 8547840. Its totient is φ = 640224.

The previous prime is 2802859. The next prime is 2802871. The reversal of 2802870 is 782082.

2802870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2802871) 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 31 ways as a sum of consecutive naturals, for example, 1149 + ... + 2631.

It is an arithmetic number, because the mean of its divisors is an integer number (133560).

2^2802870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2802870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4273920).

2802870 is an abundant number, since it is smaller than the sum of its proper divisors (5744970).

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

2802870 is a wasteful number, since it uses less digits than its factorization.

2802870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506 (or 1500 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 2802870 is about 1674.1774099539. The cubic root of 2802870 is about 140.9941147385.

The spelling of 2802870 in words is "two million, eight hundred two thousand, eight hundred seventy".