428434564 has 6 divisors (see below), whose sum is σ = 749760494. Its totient is φ = 214217280.

The previous prime is 428434541. The next prime is 428434597. The reversal of 428434564 is 465434824.

It can be written as a sum of positive squares in only one way, i.e., 411278400 + 17156164 = 20280^2 + 4142^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53554317 + ... + 53554324.

Almost surely, 2^428434564 is an apocalyptic number.

It is an amenable number.

428434564 is a deficient number, since it is larger than the sum of its proper divisors (321325930).

428434564 is a wasteful number, since it uses less digits than its factorization.

428434564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107108645 (or 107108643 counting only the distinct ones).

The product of its digits is 368640, while the sum is 40.

The square root of 428434564 is about 20698.6609228713. The cubic root of 428434564 is about 753.8671747115.

The spelling of 428434564 in words is "four hundred twenty-eight million, four hundred thirty-four thousand, five hundred sixty-four".