1889493122 has 16 divisors (see below), whose sum is σ = 3103401600. Its totient is φ = 855665040.

The previous prime is 1889493103. The next prime is 1889493127. The reversal of 1889493122 is 2213949881.

It is not an unprimeable number, because it can be changed into a prime (1889493127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153722 + ... + 165557.

It is an arithmetic number, because the mean of its divisors is an integer number (193962600).

Almost surely, 2^1889493122 is an apocalyptic number.

1889493122 is a deficient number, since it is larger than the sum of its proper divisors (1213908478).

1889493122 is a wasteful number, since it uses less digits than its factorization.

1889493122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319561.

The product of its digits is 248832, while the sum is 47.

The square root of 1889493122 is about 43468.3001968101. The cubic root of 1889493122 is about 1236.2750515496.

The spelling of 1889493122 in words is "one billion, eight hundred eighty-nine million, four hundred ninety-three thousand, one hundred twenty-two".