1344665550 has 48 divisors (see below), whose sum is σ = 3337255152. Its totient is φ = 358310400.

The previous prime is 1344665503. The next prime is 1344665563. The reversal of 1344665550 is 555664431.

It is a junction number, because it is equal to n+sod(n) for n = 1344665499 and 1344665508.

It is a congruent number.

It is an unprimeable number.

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, 276742 + ... + 281558.

It is an arithmetic number, because the mean of its divisors is an integer number (69526149).

Almost surely, 2^1344665550 is an apocalyptic number.

1344665550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1344665550 is an abundant number, since it is smaller than the sum of its proper divisors (1992589602).

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

1344665550 is a wasteful number, since it uses less digits than its factorization.

1344665550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6693 (or 6688 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

The square root of 1344665550 is about 36669.6816184706. The cubic root of 1344665550 is about 1103.7518033870.

The spelling of 1344665550 in words is "one billion, three hundred forty-four million, six hundred sixty-five thousand, five hundred fifty".