1350405 has 32 divisors (see below), whose sum is σ = 2745600. Its totient is φ = 616896.

The previous prime is 1350403. The next prime is 1350449. The reversal of 1350405 is 5040531.

It is not a de Polignac number, because 1350405 - 2¹ = 1350403 is a prime.

1350405 is a modest number, since divided by 405 gives 135 as remainder.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1350403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 231 + ... + 1659.

It is an arithmetic number, because the mean of its divisors is an integer number (85800).

2^1350405 is an apocalyptic number.

1350405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1350405 is an abundant number, since it is smaller than the sum of its proper divisors (1395195).

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

1350405 is a wasteful number, since it uses less digits than its factorization.

1350405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450 (or 1444 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 1350405 is about 1162.0692750434. The cubic root of 1350405 is about 110.5319959487.

Adding to 1350405 its reverse (5040531), we get a palindrome (6390936).

The spelling of 1350405 in words is "one million, three hundred fifty thousand, four hundred five".