1922443460 has 72 divisors (see below), whose sum is σ = 4710999384. Its totient is φ = 657054720.

The previous prime is 1922443451. The next prime is 1922443469. The reversal of 1922443460 is 643442291.

It is an interprime number because it is at equal distance from previous prime (1922443451) and next prime (1922443469).

It can be written as a sum of positive squares in 4 ways, for example, as 305760196 + 1616683264 = 17486^2 + 40208^2 .

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 1922443460.

It is not an unprimeable number, because it can be changed into a prime (1922443469) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 327350 + ... + 333170.

It is an arithmetic number, because the mean of its divisors is an integer number (65430547).

Almost surely, 2^1922443460 is an apocalyptic number.

1922443460 is a gapful number since it is divisible by the number (10) 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 1922443460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2355499692).

1922443460 is an abundant number, since it is smaller than the sum of its proper divisors (2788555924).

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

1922443460 is a wasteful number, since it uses less digits than its factorization.

1922443460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6181 (or 6172 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 1922443460 is about 43845.6777801416. The cubic root of 1922443460 is about 1243.4200287586.

The spelling of 1922443460 in words is "one billion, nine hundred twenty-two million, four hundred forty-three thousand, four hundred sixty".