1306616844 has 96 divisors (see below), whose sum is σ = 3491195904. Its totient is φ = 377245440.

The previous prime is 1306616827. The next prime is 1306616849. The reversal of 1306616844 is 4486166031.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1306616849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186729 + ... + 193599.

It is an arithmetic number, because the mean of its divisors is an integer number (36366624).

Almost surely, 2^1306616844 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1306616844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1745597952).

1306616844 is an abundant number, since it is smaller than the sum of its proper divisors (2184579060).

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

1306616844 is a wasteful number, since it uses less digits than its factorization.

1306616844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6967 (or 6965 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 1306616844 is about 36147.1554067537. The cubic root of 1306616844 is about 1093.2414365636.

The spelling of 1306616844 in words is "one billion, three hundred six million, six hundred sixteen thousand, eight hundred forty-four".