1000866160 has 240 divisors, whose sum is σ = 2995361856. Its totient is φ = 308453376.

The previous prime is 1000866133. The next prime is 1000866161. The reversal of 1000866160 is 616680001.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000866161) 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, 1532394 + ... + 1533046.

Almost surely, 2^1000866160 is an apocalyptic number.

1000866160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1000866160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1497680928).

1000866160 is an abundant number, since it is smaller than the sum of its proper divisors (1994495696).

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

1000866160 is a wasteful number, since it uses less digits than its factorization.

1000866160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720 (or 707 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 1000866160 is about 31636.4688295012. The cubic root of 1000866160 is about 1000.2886366809.

The spelling of 1000866160 in words is "one billion, eight hundred sixty-six thousand, one hundred sixty".