880685820 has 216 divisors, whose sum is σ = 3208802688. Its totient is φ = 194745600.

The previous prime is 880685809. The next prime is 880685849. The reversal of 880685820 is 28586088.

880685820 is a `hidden beast` number, since 8 + 8 + 0 + 68 + 582 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 271810 + ... + 275030.

It is an arithmetic number, because the mean of its divisors is an integer number (14855568).

Almost surely, 2^880685820 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 880685820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1604401344).

880685820 is an abundant number, since it is smaller than the sum of its proper divisors (2328116868).

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

880685820 is a wasteful number, since it uses less digits than its factorization.

880685820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3281 (or 3269 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 45.

The square root of 880685820 is about 29676.3511908051. The cubic root of 880685820 is about 958.5328500705.

The spelling of 880685820 in words is "eight hundred eighty million, six hundred eighty-five thousand, eight hundred twenty".