1922091984 has 160 divisors (see below), whose sum is σ = 5965392000. Its totient is φ = 590478336.

The previous prime is 1922091979. The next prime is 1922091989. The reversal of 1922091984 is 4891902291.

It is an interprime number because it is at equal distance from previous prime (1922091979) and next prime (1922091989).

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1922091989) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 300532 + ... + 306860.

It is an arithmetic number, because the mean of its divisors is an integer number (37283700).

Almost surely, 2^1922091984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1922091984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2982696000).

1922091984 is an abundant number, since it is smaller than the sum of its proper divisors (4043300016).

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

1922091984 is a wasteful number, since it uses less digits than its factorization.

1922091984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6402 (or 6390 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 1922091984 is about 43841.6694937590. The cubic root of 1922091984 is about 1243.3442469140.

The spelling of 1922091984 in words is "one billion, nine hundred twenty-two million, ninety-one thousand, nine hundred eighty-four".