890169860 has 48 divisors (see below), whose sum is σ = 1918858032. Its totient is φ = 346675200.

The previous prime is 890169859. The next prime is 890169869. The reversal of 890169860 is 68961098.

It can be written as a sum of positive squares in 8 ways, for example, as 4393216 + 885776644 = 2096^2 + 29762^2 .

It is not an unprimeable number, because it can be changed into a prime (890169869) 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 15 ways as a sum of consecutive naturals, for example, 600320 + ... + 601800.

It is an arithmetic number, because the mean of its divisors is an integer number (39976209).

Almost surely, 2^890169860 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 890169860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (959429016).

890169860 is an abundant number, since it is smaller than the sum of its proper divisors (1028688172).

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

890169860 is a wasteful number, since it uses less digits than its factorization.

890169860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2264 (or 2262 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 890169860 is about 29835.7145046000. The cubic root of 890169860 is about 961.9613618586.

The spelling of 890169860 in words is "eight hundred ninety million, one hundred sixty-nine thousand, eight hundred sixty".