1043271680 has 156 divisors (see below), whose sum is σ = 2758368396. Its totient is φ = 378470400.

The previous prime is 1043271679. The next prime is 1043271683. The reversal of 1043271680 is 861723401.

It can be written as a sum of positive squares in 2 ways, for example, as 126877696 + 916393984 = 11264^2 + 30272^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (1043271683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2477870 + ... + 2478290.

Almost surely, 2^1043271680 is an apocalyptic number.

1043271680 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 1043271680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1379184198).

1043271680 is an abundant number, since it is smaller than the sum of its proper divisors (1715096716).

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

1043271680 is an equidigital number, since it uses as much as digits as its factorization.

1043271680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 1043271680 is about 32299.7164074238. The cubic root of 1043271680 is about 1014.2207062368.

The spelling of 1043271680 in words is "one billion, forty-three million, two hundred seventy-one thousand, six hundred eighty".