428326830 has 48 divisors (see below), whose sum is σ = 1119465360. Its totient is φ = 113624064.

The previous prime is 428326819. The next prime is 428326831. The reversal of 428326830 is 38623824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428326831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5041 + ... + 29699.

It is an arithmetic number, because the mean of its divisors is an integer number (23322195).

Almost surely, 2^428326830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 428326830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (559732680).

428326830 is an abundant number, since it is smaller than the sum of its proper divisors (691138530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428326830 is a wasteful number, since it uses less digits than its factorization.

428326830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24865 (or 24862 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 428326830 is about 20696.0583203662. The cubic root of 428326830 is about 753.8039803589.

It can be divided in two parts, 4283 and 26830, that added together give a palindrome (31113).

The spelling of 428326830 in words is "four hundred twenty-eight million, three hundred twenty-six thousand, eight hundred thirty".