1922448979 has 16 divisors (see below), whose sum is σ = 2136378240. Its totient is φ = 1715148160.

The previous prime is 1922448971. The next prime is 1922448989. The reversal of 1922448979 is 9798442291.

It is a happy number.

It is not a de Polignac number, because 1922448979 - 2³ = 1922448971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1922448971) 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 15 ways as a sum of consecutive naturals, for example, 441099 + ... + 445435.

It is an arithmetic number, because the mean of its divisors is an integer number (133523640).

Almost surely, 2^1922448979 is an apocalyptic number.

1922448979 is a deficient number, since it is larger than the sum of its proper divisors (213929261).

1922448979 is a wasteful number, since it uses less digits than its factorization.

1922448979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5090.

The product of its digits is 2612736, while the sum is 55.

The square root of 1922448979 is about 43845.7407167447. The cubic root of 1922448979 is about 1243.4212186381.

The spelling of 1922448979 in words is "one billion, nine hundred twenty-two million, four hundred forty-eight thousand, nine hundred seventy-nine".