428724570 has 64 divisors (see below), whose sum is σ = 1046805120. Its totient is φ = 112358400.

The previous prime is 428724559. The next prime is 428724589. The reversal of 428724570 is 75427824.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 562990 + ... + 563750.

It is an arithmetic number, because the mean of its divisors is an integer number (16356330).

Almost surely, 2^428724570 is an apocalyptic number.

428724570 is an abundant number, since it is smaller than the sum of its proper divisors (618080550).

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

428724570 is a wasteful number, since it uses less digits than its factorization.

428724570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071.

The product of its (nonzero) digits is 125440, while the sum is 39.

The square root of 428724570 is about 20705.6651668088. The cubic root of 428724570 is about 754.0372331146.

The spelling of 428724570 in words is "four hundred twenty-eight million, seven hundred twenty-four thousand, five hundred seventy".