428804650 has 24 divisors (see below), whose sum is σ = 817033644. Its totient is φ = 167337600.

The previous prime is 428804647. The next prime is 428804669. The reversal of 428804650 is 56408824.

It can be written as a sum of positive squares in 6 ways, for example, as 184226329 + 244578321 = 13573^2 + 15639^2 .

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, 102537 + ... + 106636.

Almost surely, 2^428804650 is an apocalyptic number.

428804650 is a deficient number, since it is larger than the sum of its proper divisors (388228994).

428804650 is a wasteful number, since it uses less digits than its factorization.

428804650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209226 (or 209221 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 428804650 is about 20707.5988468002. The cubic root of 428804650 is about 754.0841782060.

The spelling of 428804650 in words is "four hundred twenty-eight million, eight hundred four thousand, six hundred fifty".