1628871316 has 24 divisors (see below), whose sum is σ = 3070416384. Its totient is φ = 753894240.

The previous prime is 1628871289. The next prime is 1628871319. The reversal of 1628871316 is 6131788261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1628871319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282715 + ... + 288418.

It is an arithmetic number, because the mean of its divisors is an integer number (127934016).

Almost surely, 2^1628871316 is an apocalyptic number.

It is an amenable number.

1628871316 is a deficient number, since it is larger than the sum of its proper divisors (1441545068).

1628871316 is a wasteful number, since it uses less digits than its factorization.

1628871316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571191 (or 571189 counting only the distinct ones).

The product of its digits is 96768, while the sum is 43.

The square root of 1628871316 is about 40359.2779420049. The cubic root of 1628871316 is about 1176.6002198093.

The spelling of 1628871316 in words is "one billion, six hundred twenty-eight million, eight hundred seventy-one thousand, three hundred sixteen".