1922788441 has 4 divisors (see below), whose sum is σ = 2197472512. Its totient is φ = 1648104372.

The previous prime is 1922788411. The next prime is 1922788457. The reversal of 1922788441 is 1448872291.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1922788441 - 2⁷ = 1922788313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1922788391 and 1922788400.

It is not an unprimeable number, because it can be changed into a prime (1922788411) 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 3 ways as a sum of consecutive naturals, for example, 137342025 + ... + 137342038.

It is an arithmetic number, because the mean of its divisors is an integer number (549368128).

Almost surely, 2^1922788441 is an apocalyptic number.

It is an amenable number.

1922788441 is a deficient number, since it is larger than the sum of its proper divisors (274684071).

1922788441 is an equidigital number, since it uses as much as digits as its factorization.

1922788441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274684070.

The product of its digits is 258048, while the sum is 46.

The square root of 1922788441 is about 43849.6116402415. The cubic root of 1922788441 is about 1243.4944012326.

The spelling of 1922788441 in words is "one billion, nine hundred twenty-two million, seven hundred eighty-eight thousand, four hundred forty-one".