2043340340 has 24 divisors (see below), whose sum is σ = 4301224872. Its totient is φ = 815391360.

The previous prime is 2043340337. The next prime is 2043340361. The reversal of 2043340340 is 430433402.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 121044004 + 1922296336 = 11002^2 + 43844^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 112919 + ... + 129758.

It is an arithmetic number, because the mean of its divisors is an integer number (179217703).

Almost surely, 2^2043340340 is an apocalyptic number.

2043340340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2043340340 is an abundant number, since it is smaller than the sum of its proper divisors (2257884532).

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

2043340340 is a wasteful number, since it uses less digits than its factorization.

2043340340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243107 (or 243105 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

The square root of 2043340340 is about 45203.3222230402. The cubic root of 2043340340 is about 1268.9569918294.

Adding to 2043340340 its reverse (430433402), we get a palindrome (2473773742).

The spelling of 2043340340 in words is "two billion, forty-three million, three hundred forty thousand, three hundred forty".