28201626 has 24 divisors (see below), whose sum is σ = 61966944. Its totient is φ = 9267720.

The previous prime is 28201609. The next prime is 28201637. The reversal of 28201626 is 62610282.

28201626 is a modest number, since divided by 1626 gives 282 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 28201626.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9756 + ... + 12311.

It is an arithmetic number, because the mean of its divisors is an integer number (2581956).

Almost surely, 2^28201626 is an apocalyptic number.

28201626 is an abundant number, since it is smaller than the sum of its proper divisors (33765318).

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

28201626 is a wasteful number, since it uses less digits than its factorization.

28201626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22146 (or 22143 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 28201626 is about 5310.5203134909. The cubic root of 28201626 is about 304.3860299696.

The spelling of 28201626 in words is "twenty-eight million, two hundred one thousand, six hundred twenty-six".