1340432344 has 8 divisors (see below), whose sum is σ = 2513310660. Its totient is φ = 670216168.

The previous prime is 1340432333. The next prime is 1340432369. The reversal of 1340432344 is 4432340431.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83777014 + ... + 83777029.

Almost surely, 2^1340432344 is an apocalyptic number.

It is an amenable number.

1340432344 is a deficient number, since it is larger than the sum of its proper divisors (1172878316).

1340432344 is a wasteful number, since it uses less digits than its factorization.

1340432344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167554049 (or 167554045 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

The square root of 1340432344 is about 36611.9153282097. The cubic root of 1340432344 is about 1102.5923278345.

Adding to 1340432344 its reverse (4432340431), we get a palindrome (5772772775).

The spelling of 1340432344 in words is "one billion, three hundred forty million, four hundred thirty-two thousand, three hundred forty-four".