1344008993 has 4 divisors (see below), whose sum is σ = 1357057728. Its totient is φ = 1330960260.

The previous prime is 1344008977. The next prime is 1344009013. The reversal of 1344008993 is 3998004431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3998004431 = 103 ⋅38815577.

It is a cyclic number.

It is not a de Polignac number, because 1344008993 - 2⁴ = 1344008977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1344008993.

It is not an unprimeable number, because it can be changed into a prime (1344008923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6524213 + ... + 6524418.

It is an arithmetic number, because the mean of its divisors is an integer number (339264432).

Almost surely, 2^1344008993 is an apocalyptic number.

It is an amenable number.

1344008993 is a deficient number, since it is larger than the sum of its proper divisors (13048735).

1344008993 is a wasteful number, since it uses less digits than its factorization.

1344008993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13048734.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 1344008993 is about 36660.7282115345. The cubic root of 1344008993 is about 1103.5721319562.

The spelling of 1344008993 in words is "one billion, three hundred forty-four million, eight thousand, nine hundred ninety-three".