1373323616 has 48 divisors (see below), whose sum is σ = 3106252800. Its totient is φ = 585467520.

The previous prime is 1373323607. The next prime is 1373323649. The reversal of 1373323616 is 6163233731.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 26735 + ... + 58833.

It is an arithmetic number, because the mean of its divisors is an integer number (64713600).

Almost surely, 2^1373323616 is an apocalyptic number.

1373323616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1373323616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1553126400).

1373323616 is an abundant number, since it is smaller than the sum of its proper divisors (1732929184).

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

1373323616 is a wasteful number, since it uses less digits than its factorization.

1373323616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32307 (or 32299 counting only the distinct ones).

The product of its digits is 40824, while the sum is 35.

The square root of 1373323616 is about 37058.3811842881. The cubic root of 1373323616 is about 1111.5379530651.

The spelling of 1373323616 in words is "one billion, three hundred seventy-three million, three hundred twenty-three thousand, six hundred sixteen".