1996719228 has 144 divisors (see below), whose sum is σ = 6044371200. Its totient is φ = 568360800.

The previous prime is 1996719211. The next prime is 1996719251. The reversal of 1996719228 is 8229176991.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1899303 + ... + 1900353.

It is an arithmetic number, because the mean of its divisors is an integer number (41974800).

Almost surely, 2^1996719228 is an apocalyptic number.

1996719228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1996719228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3022185600).

1996719228 is an abundant number, since it is smaller than the sum of its proper divisors (4047651972).

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

1996719228 is a wasteful number, since it uses less digits than its factorization.

1996719228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437 (or 1422 counting only the distinct ones).

The product of its digits is 979776, while the sum is 54.

The square root of 1996719228 is about 44684.6643491926. The cubic root of 1996719228 is about 1259.2317539031.

The spelling of 1996719228 in words is "one billion, nine hundred ninety-six million, seven hundred nineteen thousand, two hundred twenty-eight".