2628556 has 18 divisors (see below), whose sum is σ = 5351388. Its totient is φ = 1126440.

The previous prime is 2628553. The next prime is 2628559. The reversal of 2628556 is 6558262.

It is an interprime number because it is at equal distance from previous prime (2628553) and next prime (2628559).

It is a d-powerful number, because it can be written as 2⁸ + 6 + 2¹² + 8³ + 5⁸ + 5⁹ + 6⁷ .

It is not an unprimeable number, because it can be changed into a prime (2628553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6510 + ... + 6901.

2^2628556 is an apocalyptic number.

It is an amenable number.

2628556 is an abundant number, since it is smaller than the sum of its proper divisors (2722832).

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

2628556 is a wasteful number, since it uses less digits than its factorization.

2628556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13429 (or 13420 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 2628556 is about 1621.2822086238. The cubic root of 2628556 is about 138.0084710896.

It can be divided in two parts, 26 and 28556, that added together give a palindrome (28582).

The spelling of 2628556 in words is "two million, six hundred twenty-eight thousand, five hundred fifty-six".