428064584 has 8 divisors (see below), whose sum is σ = 802621110. Its totient is φ = 214032288.

The previous prime is 428064557. The next prime is 428064629. The reversal of 428064584 is 485460824.

It can be written as a sum of positive squares in only one way, i.e., 250588900 + 177475684 = 15830^2 + 13322^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×428064584³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26754029 + ... + 26754044.

Almost surely, 2^428064584 is an apocalyptic number.

It is an amenable number.

428064584 is a deficient number, since it is larger than the sum of its proper divisors (374556526).

428064584 is a wasteful number, since it uses less digits than its factorization.

428064584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53508079 (or 53508075 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 41.

The square root of 428064584 is about 20689.7216994333. The cubic root of 428064584 is about 753.6501084223.

The spelling of 428064584 in words is "four hundred twenty-eight million, sixty-four thousand, five hundred eighty-four".