428280206 has 8 divisors (see below), whose sum is σ = 642508200. Its totient is φ = 214110808.

The previous prime is 428280191. The next prime is 428280241. The reversal of 428280206 is 602082824.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 20345 + ... + 35643.

It is an arithmetic number, because the mean of its divisors is an integer number (80313525).

Almost surely, 2^428280206 is an apocalyptic number.

428280206 is a deficient number, since it is larger than the sum of its proper divisors (214227994).

428280206 is a wasteful number, since it uses less digits than its factorization.

428280206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29298.

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 428280206 is about 20694.9318916492. The cubic root of 428280206 is about 753.7766284790.

The spelling of 428280206 in words is "four hundred twenty-eight million, two hundred eighty thousand, two hundred six".