428019582 has 24 divisors (see below), whose sum is σ = 877448088. Its totient is φ = 139190080.

The previous prime is 428019563. The next prime is 428019583. The reversal of 428019582 is 285910824.

It is a self number, because there is not a number n which added to its sum of digits gives 428019582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428019583) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11133 + ... + 31304.

It is an arithmetic number, because the mean of its divisors is an integer number (36560337).

Almost surely, 2^428019582 is an apocalyptic number.

428019582 is an abundant number, since it is smaller than the sum of its proper divisors (449428506).

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

428019582 is a wasteful number, since it uses less digits than its factorization.

428019582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42524 (or 42483 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 428019582 is about 20688.6341260123. The cubic root of 428019582 is about 753.6236973370.

The spelling of 428019582 in words is "four hundred twenty-eight million, nineteen thousand, five hundred eighty-two".