428905912 has 16 divisors (see below), whose sum is σ = 805204800. Its totient is φ = 214184640.

The previous prime is 428905907. The next prime is 428905913. The reversal of 428905912 is 219509824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428905913) by changing a digit.

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, 26664 + ... + 39607.

It is an arithmetic number, because the mean of its divisors is an integer number (50325300).

Almost surely, 2^428905912 is an apocalyptic number.

It is an amenable number.

428905912 is a deficient number, since it is larger than the sum of its proper divisors (376298888).

428905912 is a wasteful number, since it uses less digits than its factorization.

428905912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67086 (or 67082 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 428905912 is about 20710.0437469359. The cubic root of 428905912 is about 754.1435323992.

The spelling of 428905912 in words is "four hundred twenty-eight million, nine hundred five thousand, nine hundred twelve".