1916828276 has 36 divisors (see below), whose sum is σ = 3699194436. Its totient is φ = 868433280.

The previous prime is 1916828237. The next prime is 1916828279. The reversal of 1916828276 is 6728286191.

It can be written as a sum of positive squares in 2 ways, for example, as 9759376 + 1907068900 = 3124^2 + 43670^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1916828279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145166 + ... + 157818.

It is an arithmetic number, because the mean of its divisors is an integer number (102755401).

Almost surely, 2^1916828276 is an apocalyptic number.

It is an amenable number.

1916828276 is a deficient number, since it is larger than the sum of its proper divisors (1782366160).

1916828276 is a wasteful number, since it uses less digits than its factorization.

1916828276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12992 (or 12979 counting only the distinct ones).

The product of its digits is 580608, while the sum is 50.

The square root of 1916828276 is about 43781.5974582929. The cubic root of 1916828276 is about 1242.2082304596.

The spelling of 1916828276 in words is "one billion, nine hundred sixteen million, eight hundred twenty-eight thousand, two hundred seventy-six".