206628004 has 24 divisors (see below), whose sum is σ = 395388000. Its totient is φ = 93703680.

The previous prime is 206628001. The next prime is 206628031. The reversal of 206628004 is 400826602.

It is not an unprimeable number, because it can be changed into a prime (206628001) 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 7 ways as a sum of consecutive naturals, for example, 14527 + ... + 24985.

It is an arithmetic number, because the mean of its divisors is an integer number (16474500).

Almost surely, 2^206628004 is an apocalyptic number.

It is an amenable number.

206628004 is a deficient number, since it is larger than the sum of its proper divisors (188759996).

206628004 is a wasteful number, since it uses less digits than its factorization.

206628004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10923 (or 10921 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 206628004 is about 14374.5610019924. The cubic root of 206628004 is about 591.1936039429.

The spelling of 206628004 in words is "two hundred six million, six hundred twenty-eight thousand, four".