1922905838 has 16 divisors (see below), whose sum is σ = 3296973024. Its totient is φ = 823961760.

The previous prime is 1922905801. The next prime is 1922905843. The reversal of 1922905838 is 8385092291.

It is a junction number, because it is equal to n+sod(n) for n = 1922905792 and 1922905801.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 151556 + ... + 163752.

It is an arithmetic number, because the mean of its divisors is an integer number (206060814).

Almost surely, 2^1922905838 is an apocalyptic number.

1922905838 is a deficient number, since it is larger than the sum of its proper divisors (1374067186).

1922905838 is a wasteful number, since it uses less digits than its factorization.

1922905838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23467.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 1922905838 is about 43850.9502519615. The cubic root of 1922905838 is about 1243.5197081494.

The spelling of 1922905838 in words is "one billion, nine hundred twenty-two million, nine hundred five thousand, eight hundred thirty-eight".