428434548 has 24 divisors (see below), whose sum is σ = 1000265280. Its totient is φ = 142728000.

The previous prime is 428434541. The next prime is 428434597. The reversal of 428434548 is 845434824.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428434541) 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 7 ways as a sum of consecutive naturals, for example, 13048 + ... + 32048.

It is an arithmetic number, because the mean of its divisors is an integer number (41677720).

Almost surely, 2^428434548 is an apocalyptic number.

It is an amenable number.

428434548 is an abundant number, since it is smaller than the sum of its proper divisors (571830732).

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

428434548 is a wasteful number, since it uses less digits than its factorization.

428434548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20887 (or 20885 counting only the distinct ones).

The product of its digits is 491520, while the sum is 42.

The square root of 428434548 is about 20698.6605363729. The cubic root of 428434548 is about 753.8671653271.

The spelling of 428434548 in words is "four hundred twenty-eight million, four hundred thirty-four thousand, five hundred forty-eight".