428548 has 6 divisors (see below), whose sum is σ = 749966. Its totient is φ = 214272.

The previous prime is 428539. The next prime is 428551. The reversal of 428548 is 845824.

It can be written as a sum of positive squares in only one way, i.e., 412164 + 16384 = 642^2 + 128^2 .

It is a congruent number.

It is an unprimeable number.

428548 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 as a sum of consecutive naturals, namely, 53565 + ... + 53572.

2⁴²⁸⁵⁴⁸ is an apocalyptic number.

It is an amenable number.

428548 is a deficient number, since it is larger than the sum of its proper divisors (321418).

428548 is a wasteful number, since it uses less digits than its factorization.

428548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107141 (or 107139 counting only the distinct ones).

The product of its digits is 10240, while the sum is 31.

The square root of 428548 is about 654.6357765964. The cubic root of 428548 is about 75.3933702281.

The spelling of 428548 in words is "four hundred twenty-eight thousand, five hundred forty-eight".