649325284 has 24 divisors (see below), whose sum is σ = 1194182528. Its totient is φ = 308538720.

The previous prime is 649325279. The next prime is 649325309. The reversal of 649325284 is 482523946.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 649325284.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44652 + ... + 57379.

Almost surely, 2^649325284 is an apocalyptic number.

It is an amenable number.

649325284 is a deficient number, since it is larger than the sum of its proper divisors (544857244).

649325284 is a wasteful number, since it uses less digits than its factorization.

649325284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102115 (or 102113 counting only the distinct ones).

The product of its digits is 414720, while the sum is 43.

The square root of 649325284 is about 25481.8618629016. The cubic root of 649325284 is about 865.9392757354.

The spelling of 649325284 in words is "six hundred forty-nine million, three hundred twenty-five thousand, two hundred eighty-four".