1589889852 has 144 divisors (see below), whose sum is σ = 4332182400. Its totient is φ = 490613760.

The previous prime is 1589889797. The next prime is 1589889883. The reversal of 1589889852 is 2589889851.

It is a self number, because there is not a number n which added to its sum of digits gives 1589889852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3051352 + ... + 3051872.

It is an arithmetic number, because the mean of its divisors is an integer number (30084600).

Almost surely, 2^1589889852 is an apocalyptic number.

1589889852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1589889852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2166091200).

1589889852 is an abundant number, since it is smaller than the sum of its proper divisors (2742292548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1589889852 is a wasteful number, since it uses less digits than its factorization.

1589889852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676 (or 671 counting only the distinct ones).

The product of its digits is 16588800, while the sum is 63.

The square root of 1589889852 is about 39873.4228779020. The cubic root of 1589889852 is about 1167.1383671183.

Subtracting 1589889852 from its reverse (2589889851), we obtain a palindrome (999999999).

The spelling of 1589889852 in words is "one billion, five hundred eighty-nine million, eight hundred eighty-nine thousand, eight hundred fifty-two".