1912973922 has 120 divisors (see below), whose sum is σ = 4679360400. Its totient is φ = 582476832.

The previous prime is 1912973873. The next prime is 1912973939. The reversal of 1912973922 is 2293792191.

It is a hoax number, since the sum of its digits (45) 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 (13) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 2588229 + ... + 2588967.

It is an arithmetic number, because the mean of its divisors is an integer number (38994670).

Almost surely, 2^1912973922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1912973922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2339680200).

1912973922 is an abundant number, since it is smaller than the sum of its proper divisors (2766386478).

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

1912973922 is a wasteful number, since it uses less digits than its factorization.

1912973922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830 (or 792 counting only the distinct ones).

The product of its digits is 122472, while the sum is 45.

The square root of 1912973922 is about 43737.5573392022. The cubic root of 1912973922 is about 1241.3750619237.

The spelling of 1912973922 in words is "one billion, nine hundred twelve million, nine hundred seventy-three thousand, nine hundred twenty-two".