1912168944 has 180 divisors, whose sum is σ = 6456321144. Its totient is φ = 546279552.

The previous prime is 1912168943. The next prime is 1912168967. The reversal of 1912168944 is 4498612191.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1912168944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1912168943) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 185494 + ... + 195530.

Almost surely, 2^1912168944 is an apocalyptic number.

1912168944 is a gapful number since it is divisible by the number (14) 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 1912168944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3228160572).

1912168944 is an abundant number, since it is smaller than the sum of its proper divisors (4544152200).

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

1912168944 is a wasteful number, since it uses less digits than its factorization.

1912168944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10074 (or 10049 counting only the distinct ones).

The product of its digits is 124416, while the sum is 45.

The square root of 1912168944 is about 43728.3540051532. The cubic root of 1912168944 is about 1241.2009142608.

The spelling of 1912168944 in words is "one billion, nine hundred twelve million, one hundred sixty-eight thousand, nine hundred forty-four".