428932844 has 12 divisors (see below), whose sum is σ = 753940824. Its totient is φ = 213521184.

The previous prime is 428932817. The next prime is 428932849. The reversal of 428932844 is 448239824.

It is a junction number, because it is equal to n+sod(n) for n = 428932795 and 428932804.

It is not an unprimeable number, because it can be changed into a prime (428932849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235289 + ... + 237104.

It is an arithmetic number, because the mean of its divisors is an integer number (62828402).

Almost surely, 2^428932844 is an apocalyptic number.

It is an amenable number.

428932844 is a deficient number, since it is larger than the sum of its proper divisors (325007980).

428932844 is a wasteful number, since it uses less digits than its factorization.

428932844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472624 (or 472622 counting only the distinct ones).

The product of its digits is 442368, while the sum is 44.

The square root of 428932844 is about 20710.6939526420. The cubic root of 428932844 is about 754.1593168777.

The spelling of 428932844 in words is "four hundred twenty-eight million, nine hundred thirty-two thousand, eight hundred forty-four".