6440316284 has 6 divisors (see below), whose sum is σ = 11270553504. Its totient is φ = 3220158140.

The previous prime is 6440316263. The next prime is 6440316293. The reversal of 6440316284 is 4826130446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805039532 + ... + 805039539.

It is an arithmetic number, because the mean of its divisors is an integer number (1878425584).

Almost surely, 2^6440316284 is an apocalyptic number.

It is an amenable number.

6440316284 is a deficient number, since it is larger than the sum of its proper divisors (4830237220).

6440316284 is a wasteful number, since it uses less digits than its factorization.

6440316284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610079075 (or 1610079073 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 38.

The square root of 6440316284 is about 80251.5811931453. The cubic root of 6440316284 is about 1860.5259510049.

The spelling of 6440316284 in words is "six billion, four hundred forty million, three hundred sixteen thousand, two hundred eighty-four".