1343665407 has 24 divisors (see below), whose sum is σ = 2134892592. Its totient is φ = 749078400.

The previous prime is 1343665403. The next prime is 1343665423. The reversal of 1343665407 is 7045663431.

It is not a de Polignac number, because 1343665407 - 2² = 1343665403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343665403) 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 23 ways as a sum of consecutive naturals, for example, 105444 + ... + 117497.

It is an arithmetic number, because the mean of its divisors is an integer number (88953858).

Almost surely, 2^1343665407 is an apocalyptic number.

1343665407 is a deficient number, since it is larger than the sum of its proper divisors (791227185).

1343665407 is a wasteful number, since it uses less digits than its factorization.

1343665407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222999 (or 222992 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 39.

The square root of 1343665407 is about 36656.0418894348. The cubic root of 1343665407 is about 1103.4780839124.

The spelling of 1343665407 in words is "one billion, three hundred forty-three million, six hundred sixty-five thousand, four hundred seven".