885440 has 28 divisors (see below), whose sum is σ = 2109216. Its totient is φ = 354048.

The previous prime is 885427. The next prime is 885449. The reversal of 885440 is 44588.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (885449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1064 + ... + 1703.

2⁸⁸⁵⁴⁴⁰ is an apocalyptic number.

885440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

885440 is an abundant number, since it is smaller than the sum of its proper divisors (1223776).

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

885440 is a wasteful number, since it uses less digits than its factorization.

885440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2784 (or 2774 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 885440 is about 940.9782144131. The cubic root of 885440 is about 96.0254562122.

The spelling of 885440 in words is "eight hundred eighty-five thousand, four hundred forty".