428379282 has 48 divisors (see below), whose sum is σ = 979954560. Its totient is φ = 134869536.

The previous prime is 428379269. The next prime is 428379283. The reversal of 428379282 is 282973824.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (428379283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123808 + ... + 127220.

It is an arithmetic number, because the mean of its divisors is an integer number (20415720).

Almost surely, 2^428379282 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 428379282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (489977280).

428379282 is an abundant number, since it is smaller than the sum of its proper divisors (551575278).

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

428379282 is a wasteful number, since it uses less digits than its factorization.

428379282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3807 (or 3804 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 428379282 is about 20697.3254793947. The cubic root of 428379282 is about 753.8347488514.

The spelling of 428379282 in words is "four hundred twenty-eight million, three hundred seventy-nine thousand, two hundred eighty-two".