1001326860 has 240 divisors, whose sum is σ = 3367780416. Its totient is φ = 248168448.

The previous prime is 1001326849. The next prime is 1001326867. The reversal of 1001326860 is 686231001.

1001326860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1001326867) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2836444 + ... + 2836796.

Almost surely, 2^1001326860 is an apocalyptic number.

1001326860 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 1001326860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1683890208).

1001326860 is an abundant number, since it is smaller than the sum of its proper divisors (2366453556).

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

1001326860 is a wasteful number, since it uses less digits than its factorization.

1001326860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 483 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1001326860 is about 31643.7491457634. The cubic root of 1001326860 is about 1000.4420911932.

Adding to 1001326860 its reverse (686231001), we get a palindrome (1687557861).

The spelling of 1001326860 in words is "one billion, one million, three hundred twenty-six thousand, eight hundred sixty".