1340485185 has 24 divisors (see below), whose sum is σ = 2322454464. Its totient is φ = 659929920.

The previous prime is 1340485151. The next prime is 1340485199. The reversal of 1340485185 is 5815840431.

1340485185 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1340485185 - 2¹² = 1340481089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 261861 + ... + 266930.

It is an arithmetic number, because the mean of its divisors is an integer number (96768936).

Almost surely, 2^1340485185 is an apocalyptic number.

1340485185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1340485185 is a deficient number, since it is larger than the sum of its proper divisors (981969279).

1340485185 is a wasteful number, since it uses less digits than its factorization.

1340485185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528825 (or 528812 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 1340485185 is about 36612.6369577500. The cubic root of 1340485185 is about 1102.6068160245.

It can be divided in two parts, 13404 and 85185, that added together give a palindrome (98589).

The spelling of 1340485185 in words is "one billion, three hundred forty million, four hundred eighty-five thousand, one hundred eighty-five".