428247288 has 96 divisors (see below), whose sum is σ = 1332140160. Its totient is φ = 121746240.

The previous prime is 428247283. The next prime is 428247293. The reversal of 428247288 is 882742824.

It is an interprime number because it is at equal distance from previous prime (428247283) and next prime (428247293).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428247283) 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 23 ways as a sum of consecutive naturals, for example, 104331 + ... + 108357.

It is an arithmetic number, because the mean of its divisors is an integer number (13876460).

Almost surely, 2^428247288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 428247288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (666070080).

428247288 is an abundant number, since it is smaller than the sum of its proper divisors (903892872).

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

428247288 is a wasteful number, since it uses less digits than its factorization.

428247288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4257 (or 4250 counting only the distinct ones).

The product of its digits is 458752, while the sum is 45.

The square root of 428247288 is about 20694.1365608715. The cubic root of 428247288 is about 753.7573160020.

The spelling of 428247288 in words is "four hundred twenty-eight million, two hundred forty-seven thousand, two hundred eighty-eight".