890144 has 12 divisors (see below), whose sum is σ = 1752534. Its totient is φ = 445056.

The previous prime is 890129. The next prime is 890147. The reversal of 890144 is 441098.

It can be written as a sum of positive squares in only one way, i.e., 739600 + 150544 = 860^2 + 388^2 .

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 890144.

It is not an unprimeable number, because it can be changed into a prime (890147) by changing a digit.

890144 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13877 + ... + 13940.

2⁸⁹⁰¹⁴⁴ is an apocalyptic number.

It is an amenable number.

890144 is a deficient number, since it is larger than the sum of its proper divisors (862390).

890144 is a wasteful number, since it uses less digits than its factorization.

890144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27827 (or 27819 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 890144 is about 943.4744299662. The cubic root of 890144 is about 96.1952046572.

The spelling of 890144 in words is "eight hundred ninety thousand, one hundred forty-four".