885439980 has 144 divisors (see below), whose sum is σ = 2800272384. Its totient is φ = 226212480.

The previous prime is 885439967. The next prime is 885439987. The reversal of 885439980 is 89934588.

It is a happy number.

885439980 is a `hidden beast` number, since 8 + 8 + 543 + 9 + 98 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (885439987) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 596319 + ... + 597801.

It is an arithmetic number, because the mean of its divisors is an integer number (19446336).

Almost surely, 2^885439980 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 885439980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1400136192).

885439980 is an abundant number, since it is smaller than the sum of its proper divisors (1914832404).

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

885439980 is a wasteful number, since it uses less digits than its factorization.

885439980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636 (or 1631 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The square root of 885439980 is about 29756.3435253729. The cubic root of 885439980 is about 960.2545548917.

The spelling of 885439980 in words is "eight hundred eighty-five million, four hundred thirty-nine thousand, nine hundred eighty".