1916832228 has 24 divisors (see below), whose sum is σ = 4475791488. Its totient is φ = 638489376.

The previous prime is 1916832223. The next prime is 1916832283. The reversal of 1916832228 is 8222386191.

It is a super-3 number, since 3×1916832228³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1916832228.

It is not an unprimeable number, because it can be changed into a prime (1916832223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39051 + ... + 73202.

It is an arithmetic number, because the mean of its divisors is an integer number (186491312).

Almost surely, 2^1916832228 is an apocalyptic number.

It is an amenable number.

1916832228 is an abundant number, since it is smaller than the sum of its proper divisors (2558959260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1916832228 is a wasteful number, since it uses less digits than its factorization.

1916832228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113683 (or 113681 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The square root of 1916832228 is about 43781.6425913875. The cubic root of 1916832228 is about 1242.2090841621.

The spelling of 1916832228 in words is "one billion, nine hundred sixteen million, eight hundred thirty-two thousand, two hundred twenty-eight".