1085347240 has 24 divisors (see below), whose sum is σ = 2442500190. Its totient is φ = 434055552.

The previous prime is 1085347229. The next prime is 1085347247. The reversal of 1085347240 is 427435801.

It can be written as a sum of positive squares in 3 ways, for example, as 1049371236 + 35976004 = 32394^2 + 5998^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1085347196 and 1085347205.

It is not an unprimeable number, because it can be changed into a prime (1085347247) 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 5 ways as a sum of consecutive naturals, for example, 205756 + ... + 210964.

Almost surely, 2^1085347240 is an apocalyptic number.

1085347240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1085347240 is an abundant number, since it is smaller than the sum of its proper divisors (1357152950).

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

1085347240 is an frugal number, since it uses more digits than its factorization.

1085347240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10429 (or 5216 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 1085347240 is about 32944.6086636342. The cubic root of 1085347240 is about 1027.6760499742.

The spelling of 1085347240 in words is "one billion, eighty-five million, three hundred forty-seven thousand, two hundred forty".