2628890 has 16 divisors (see below), whose sum is σ = 5162400. Its totient is φ = 955920.

The previous prime is 2628889. The next prime is 2628911. The reversal of 2628890 is 988262.

It is a super-2 number, since 2×2628890² = 13822125264200, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2628890.

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, 11840 + ... + 12059.

It is an arithmetic number, because the mean of its divisors is an integer number (322650).

2^2628890 is an apocalyptic number.

2628890 is a deficient number, since it is larger than the sum of its proper divisors (2533510).

2628890 is a wasteful number, since it uses less digits than its factorization.

2628890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23917.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 2628890 is about 1621.3852102446. The cubic root of 2628890 is about 138.0143162351.

The spelling of 2628890 in words is "two million, six hundred twenty-eight thousand, eight hundred ninety".