19422440852 has 24 divisors (see below), whose sum is σ = 34227217920. Its totient is φ = 9643415040.

The previous prime is 19422440837. The next prime is 19422440893. The reversal of 19422440852 is 25804422491.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 418799 + ... + 462857.

It is an arithmetic number, because the mean of its divisors is an integer number (1426134080).

Almost surely, 2^19422440852 is an apocalyptic number.

It is an amenable number.

19422440852 is a deficient number, since it is larger than the sum of its proper divisors (14804777068).

19422440852 is a wasteful number, since it uses less digits than its factorization.

19422440852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44831 (or 44829 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

The spelling of 19422440852 in words is "nineteen billion, four hundred twenty-two million, four hundred forty thousand, eight hundred fifty-two".