1089724441 has 16 divisors (see below), whose sum is σ = 1185189264. Its totient is φ = 995963904.

The previous prime is 1089724439. The next prime is 1089724477. The reversal of 1089724441 is 1444279801.

It can be written as a sum of positive squares in 8 ways, for example, as 316662025 + 773062416 = 17795^2 + 27804^2 .

It is not a de Polignac number, because 1089724441 - 2¹ = 1089724439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1089724394 and 1089724403.

It is not an unprimeable number, because it can be changed into a prime (1089724421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1162525 + ... + 1163461.

It is an arithmetic number, because the mean of its divisors is an integer number (74074329).

Almost surely, 2^1089724441 is an apocalyptic number.

It is an amenable number.

1089724441 is a deficient number, since it is larger than the sum of its proper divisors (95464823).

1089724441 is a wasteful number, since it uses less digits than its factorization.

1089724441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 1089724441 is about 33010.9745539268. The cubic root of 1089724441 is about 1029.0557346541.

The spelling of 1089724441 in words is "one billion, eighty-nine million, seven hundred twenty-four thousand, four hundred forty-one".