2405340340 has 96 divisors (see below), whose sum is σ = 5834747520. Its totient is φ = 825417216.

The previous prime is 2405340337. The next prime is 2405340347. The reversal of 2405340340 is 430435042.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2405340347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 257227 + ... + 266413.

It is an arithmetic number, because the mean of its divisors is an integer number (60778620).

Almost surely, 2^2405340340 is an apocalyptic number.

2405340340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2405340340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2917373760).

2405340340 is an abundant number, since it is smaller than the sum of its proper divisors (3429407180).

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

2405340340 is a wasteful number, since it uses less digits than its factorization.

2405340340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9281 (or 9279 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 2405340340 is about 49044.2691861139. The cubic root of 2405340340 is about 1339.8582199440.

Adding to 2405340340 its reverse (430435042), we get a palindrome (2835775382).

The spelling of 2405340340 in words is "two billion, four hundred five million, three hundred forty thousand, three hundred forty".