6489284428 has 24 divisors (see below), whose sum is σ = 12415201344. Its totient is φ = 2943349200.

The previous prime is 6489284381. The next prime is 6489284449. The reversal of 6489284428 is 8244829846.

It is a happy number.

It is a super-2 number, since 2×6489284428² = 84221624774966574368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137358 + ... + 178453.

It is an arithmetic number, because the mean of its divisors is an integer number (517300056).

Almost surely, 2^6489284428 is an apocalyptic number.

It is an amenable number.

6489284428 is a deficient number, since it is larger than the sum of its proper divisors (5925916916).

6489284428 is a wasteful number, since it uses less digits than its factorization.

6489284428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316293 (or 316291 counting only the distinct ones).

The product of its digits is 7077888, while the sum is 55.

The square root of 6489284428 is about 80556.0949152825. The cubic root of 6489284428 is about 1865.2294760842.

It can be divided in two parts, 648928 and 4428, that added together give a palindrome (653356).

The spelling of 6489284428 in words is "six billion, four hundred eighty-nine million, two hundred eighty-four thousand, four hundred twenty-eight".