1989250846 has 16 divisors (see below), whose sum is σ = 3263111280. Its totient is φ = 901990080.

The previous prime is 1989250793. The next prime is 1989250849. The reversal of 1989250846 is 6480529891.

It is a junction number, because it is equal to n+sod(n) for n = 1989250793 and 1989250802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1989250849) 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 7 ways as a sum of consecutive naturals, for example, 101541 + ... + 119536.

It is an arithmetic number, because the mean of its divisors is an integer number (203944455).

Almost surely, 2^1989250846 is an apocalyptic number.

1989250846 is a deficient number, since it is larger than the sum of its proper divisors (1273860434).

1989250846 is a wasteful number, since it uses less digits than its factorization.

1989250846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221499.

The product of its (nonzero) digits is 1244160, while the sum is 52.

The square root of 1989250846 is about 44601.0184412867. The cubic root of 1989250846 is about 1257.6598130808.

The spelling of 1989250846 in words is "one billion, nine hundred eighty-nine million, two hundred fifty thousand, eight hundred forty-six".