919424443 has 16 divisors (see below), whose sum is σ = 1105145856. Its totient is φ = 748257120.

The previous prime is 919424437. The next prime is 919424477. The reversal of 919424443 is 344424919.

It is a cyclic number.

It is not a de Polignac number, because 919424443 - 2⁵ = 919424411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 919424396 and 919424405.

It is not an unprimeable number, because it can be changed into a prime (919424543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28471 + ... + 51472.

It is an arithmetic number, because the mean of its divisors is an integer number (69071616).

Almost surely, 2^919424443 is an apocalyptic number.

919424443 is a deficient number, since it is larger than the sum of its proper divisors (185721413).

919424443 is a wasteful number, since it uses less digits than its factorization.

919424443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80034.

The product of its digits is 124416, while the sum is 40.

The square root of 919424443 is about 30322.0125156626. The cubic root of 919424443 is about 972.3859649574.

The spelling of 919424443 in words is "nine hundred nineteen million, four hundred twenty-four thousand, four hundred forty-three".