1085440489 has 8 divisors (see below), whose sum is σ = 1240702848. Its totient is φ = 930228000.

The previous prime is 1085440483. The next prime is 1085440537. The reversal of 1085440489 is 9840445801.

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 1085440489 - 2³ = 1085440481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1085440481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76989 + ... + 89989.

It is an arithmetic number, because the mean of its divisors is an integer number (155087856).

Almost surely, 2^1085440489 is an apocalyptic number.

It is an amenable number.

1085440489 is a deficient number, since it is larger than the sum of its proper divisors (155262359).

1085440489 is a wasteful number, since it uses less digits than its factorization.

1085440489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24935.

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 1085440489 is about 32946.0238723886. The cubic root of 1085440489 is about 1027.7054805000.

The spelling of 1085440489 in words is "one billion, eighty-five million, four hundred forty thousand, four hundred eighty-nine".