428248 has 16 divisors (see below), whose sum is σ = 810000. Its totient is φ = 212256.

The previous prime is 428231. The next prime is 428249. The reversal of 428248 is 842824.

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 (428249) by changing a digit.

428248 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1458 + ... + 1726.

It is an arithmetic number, because the mean of its divisors is an integer number (50625).

2⁴²⁸²⁴⁸ is an apocalyptic number.

It is an amenable number.

428248 is a deficient number, since it is larger than the sum of its proper divisors (381752).

428248 is a wasteful number, since it uses less digits than its factorization.

428248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 470 counting only the distinct ones).

The product of its digits is 4096, while the sum is 28.

The square root of 428248 is about 654.4066014337. The cubic root of 428248 is about 75.3757733732.

It can be divided in two parts, 428 and 248, that added together give a palindrome (676).

The spelling of 428248 in words is "four hundred twenty-eight thousand, two hundred forty-eight".