1085561344 has 40 divisors (see below), whose sum is σ = 2478868128. Its totient is φ = 465239040.

The previous prime is 1085561339. The next prime is 1085561353. The reversal of 1085561344 is 4431655801.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147862 + ... + 155029.

Almost surely, 2^1085561344 is an apocalyptic number.

1085561344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1085561344 is an abundant number, since it is smaller than the sum of its proper divisors (1393306784).

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

1085561344 is an frugal number, since it uses more digits than its factorization.

1085561344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302916 (or 302900 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 1085561344 is about 32947.8579576882. The cubic root of 1085561344 is about 1027.7436213094.

The spelling of 1085561344 in words is "one billion, eighty-five million, five hundred sixty-one thousand, three hundred forty-four".