1085444905 has 8 divisors (see below), whose sum is σ = 1304712000. Its totient is φ = 866903856.

The previous prime is 1085444869. The next prime is 1085444923. The reversal of 1085444905 is 5094445801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1085444905 - 2¹³ = 1085436713 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178215 + ... + 184204.

It is an arithmetic number, because the mean of its divisors is an integer number (163089000).

Almost surely, 2^1085444905 is an apocalyptic number.

It is an amenable number.

1085444905 is a deficient number, since it is larger than the sum of its proper divisors (219267095).

1085444905 is an equidigital number, since it uses as much as digits as its factorization.

1085444905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363023.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 1085444905 is about 32946.0908910298. The cubic root of 1085444905 is about 1027.7068742018.

The spelling of 1085444905 in words is "one billion, eighty-five million, four hundred forty-four thousand, nine hundred five".