428291608 has 16 divisors (see below), whose sum is σ = 850285080. Its totient is φ = 201548928.

The previous prime is 428291587. The next prime is 428291621. The reversal of 428291608 is 806192824.

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, 1574466 + ... + 1574737.

Almost surely, 2^428291608 is an apocalyptic number.

It is an amenable number.

428291608 is a deficient number, since it is larger than the sum of its proper divisors (421993472).

428291608 is a wasteful number, since it uses less digits than its factorization.

428291608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3149226 (or 3149222 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 428291608 is about 20695.2073678908. The cubic root of 428291608 is about 753.7833176237.

The spelling of 428291608 in words is "four hundred twenty-eight million, two hundred ninety-one thousand, six hundred eight".