1081541328 has 120 divisors (see below), whose sum is σ = 3391622208. Its totient is φ = 295561728.

The previous prime is 1081541327. The next prime is 1081541353. The reversal of 1081541328 is 8231451801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081541323) 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 23 ways as a sum of consecutive naturals, for example, 44100 + ... + 64092.

Almost surely, 2^1081541328 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 1081541328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1695811104).

1081541328 is an abundant number, since it is smaller than the sum of its proper divisors (2310080880).

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

1081541328 is a wasteful number, since it uses less digits than its factorization.

1081541328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20041 (or 20028 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 1081541328 is about 32886.7956481017. The cubic root of 1081541328 is about 1026.4734163355.

The spelling of 1081541328 in words is "one billion, eighty-one million, five hundred forty-one thousand, three hundred twenty-eight".