1961828112 has 20 divisors (see below), whose sum is σ = 5068056080. Its totient is φ = 653942688.

The previous prime is 1961828083. The next prime is 1961828153. The reversal of 1961828112 is 2118281691.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20435662 + ... + 20435757.

It is an arithmetic number, because the mean of its divisors is an integer number (253402804).

Almost surely, 2^1961828112 is an apocalyptic number.

1961828112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1961828112 is an abundant number, since it is smaller than the sum of its proper divisors (3106227968).

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

1961828112 is a wasteful number, since it uses less digits than its factorization.

1961828112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40871430 (or 40871424 counting only the distinct ones).

The product of its digits is 13824, while the sum is 39.

The square root of 1961828112 is about 44292.5288508118. The cubic root of 1961828112 is about 1251.8539129394.

The spelling of 1961828112 in words is "one billion, nine hundred sixty-one million, eight hundred twenty-eight thousand, one hundred twelve".