1069388441 has 6 divisors (see below), whose sum is σ = 1175443626. Its totient is φ = 972171200.

The previous prime is 1069388429. The next prime is 1069388443. The reversal of 1069388441 is 1448839601.

It can be written as a sum of positive squares in only one way, i.e., 889292041 + 180096400 = 29821^2 + 13420^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1069388441 is a prime.

It is a super-2 number, since 2×1069388441² = 2287183275488820962, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1069388392 and 1069388401.

It is not an unprimeable number, because it can be changed into a prime (1069388443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4418840 + ... + 4419081.

It is an arithmetic number, because the mean of its divisors is an integer number (195907271).

Almost surely, 2^1069388441 is an apocalyptic number.

1069388441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1069388441 is a deficient number, since it is larger than the sum of its proper divisors (106055185).

1069388441 is an equidigital number, since it uses as much as digits as its factorization.

1069388441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8837943 (or 8837932 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 1069388441 is about 32701.5051794256. The cubic root of 1069388441 is about 1022.6142222895.

The spelling of 1069388441 in words is "one billion, sixty-nine million, three hundred eighty-eight thousand, four hundred forty-one".