1340343324 has 18 divisors (see below), whose sum is σ = 3388090160. Its totient is φ = 446781096.

The previous prime is 1340343317. The next prime is 1340343343. The reversal of 1340343324 is 4233430431.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18615844 + ... + 18615915.

Almost surely, 2^1340343324 is an apocalyptic number.

It is an amenable number.

1340343324 is an abundant number, since it is smaller than the sum of its proper divisors (2047746836).

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

1340343324 is a wasteful number, since it uses less digits than its factorization.

1340343324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37231769 (or 37231764 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

The square root of 1340343324 is about 36610.6995835917. The cubic root of 1340343324 is about 1102.5679190576.

Adding to 1340343324 its reverse (4233430431), we get a palindrome (5573773755).

The spelling of 1340343324 in words is "one billion, three hundred forty million, three hundred forty-three thousand, three hundred twenty-four".