2678020 has 24 divisors (see below), whose sum is σ = 5655384. Its totient is φ = 1065216.

The previous prime is 2678017. The next prime is 2678041. The reversal of 2678020 is 208762.

It can be written as a sum of positive squares in 4 ways, for example, as 1382976 + 1295044 = 1176^2 + 1138^2 .

It is a super-2 number, since 2×2678020² = 14343582240800, which contains 22 as substring.

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, 5632 + ... + 6088.

It is an arithmetic number, because the mean of its divisors is an integer number (235641).

2^2678020 is an apocalyptic number.

2678020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2678020 is an abundant number, since it is smaller than the sum of its proper divisors (2977364).

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

2678020 is a wasteful number, since it uses less digits than its factorization.

2678020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759 (or 757 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 2678020 is about 1636.4657038875. The cubic root of 2678020 is about 138.8687752799.

The spelling of 2678020 in words is "two million, six hundred seventy-eight thousand, twenty".