203428208 has 10 divisors (see below), whose sum is σ = 394142184. Its totient is φ = 101714096.

The previous prime is 203428177. The next prime is 203428223. The reversal of 203428208 is 802824302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6357116 + ... + 6357147.

Almost surely, 2^203428208 is an apocalyptic number.

It is an amenable number.

203428208 is a deficient number, since it is larger than the sum of its proper divisors (190713976).

203428208 is a wasteful number, since it uses less digits than its factorization.

203428208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12714271 (or 12714265 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 203428208 is about 14262.8260874204. The cubic root of 203428208 is about 588.1260161522.

The spelling of 203428208 in words is "two hundred three million, four hundred twenty-eight thousand, two hundred eight".