1343939664 has 40 divisors (see below), whose sum is σ = 3473473120. Its totient is φ = 447769728.

The previous prime is 1343939647. The next prime is 1343939669. The reversal of 1343939664 is 4669393431.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1343939669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123267 + ... + 133725.

It is an arithmetic number, because the mean of its divisors is an integer number (86836828).

Almost surely, 2^1343939664 is an apocalyptic number.

It is an amenable number.

1343939664 is an abundant number, since it is smaller than the sum of its proper divisors (2129533456).

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

1343939664 is a wasteful number, since it uses less digits than its factorization.

1343939664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13147 (or 13141 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 48.

The square root of 1343939664 is about 36659.7826507469. The cubic root of 1343939664 is about 1103.5531561735.

The spelling of 1343939664 in words is "one billion, three hundred forty-three million, nine hundred thirty-nine thousand, six hundred sixty-four".