885144 has 32 divisors (see below), whose sum is σ = 2383920. Its totient is φ = 272256.

The previous prime is 885133. The next prime is 885161. The reversal of 885144 is 441588.

885144 = T₄₃₉ + T₄₄₀ + ... + T₄₄₇.

It is a congruent number.

It is an unprimeable number.

885144 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 in 7 ways as a sum of consecutive naturals, for example, 1107 + ... + 1730.

2⁸⁸⁵¹⁴⁴ is an apocalyptic number.

It is an amenable number.

885144 is an abundant number, since it is smaller than the sum of its proper divisors (1498776).

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

885144 is a wasteful number, since it uses less digits than its factorization.

885144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2859 (or 2855 counting only the distinct ones).

The product of its digits is 5120, while the sum is 30.

The square root of 885144 is about 940.8209181348. The cubic root of 885144 is about 96.0147546766.

Subtracting from 885144 its reverse (441588), we obtain a square (443556 = 666²).

The spelling of 885144 in words is "eight hundred eighty-five thousand, one hundred forty-four".