3240140343 has 32 divisors (see below), whose sum is σ = 4832213760. Its totient is φ = 1914205440.

The previous prime is 3240140339. The next prime is 3240140353. The reversal of 3240140343 is 3430410423.

It is not a de Polignac number, because 3240140343 - 2² = 3240140339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3240140353) 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, 805405 + ... + 809417.

It is an arithmetic number, because the mean of its divisors is an integer number (151006680).

Almost surely, 2^3240140343 is an apocalyptic number.

3240140343 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

3240140343 is a deficient number, since it is larger than the sum of its proper divisors (1592073417).

3240140343 is a wasteful number, since it uses less digits than its factorization.

3240140343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4639.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 3240140343 is about 56922.2306572748. The cubic root of 3240140343 is about 1479.7486094504.

Adding to 3240140343 its reverse (3430410423), we get a palindrome (6670550766).

The spelling of 3240140343 in words is "three billion, two hundred forty million, one hundred forty thousand, three hundred forty-three".