1320710550 has 24 divisors (see below), whose sum is σ = 3275362536. Its totient is φ = 352189440.

The previous prime is 1320710549. The next prime is 1320710563. The reversal of 1320710550 is 550170231.

1320710550 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1320710550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4402219 + ... + 4402518.

It is an arithmetic number, because the mean of its divisors is an integer number (136473439).

Almost surely, 2^1320710550 is an apocalyptic number.

1320710550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1320710550 is an abundant number, since it is smaller than the sum of its proper divisors (1954651986).

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

1320710550 is a wasteful number, since it uses less digits than its factorization.

1320710550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8804752 (or 8804747 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 1320710550 is about 36341.5815561183. The cubic root of 1320710550 is about 1097.1581049420.

Adding to 1320710550 its reverse (550170231), we get a palindrome (1870880781).

The spelling of 1320710550 in words is "one billion, three hundred twenty million, seven hundred ten thousand, five hundred fifty".