1345816704 has 128 divisors (see below), whose sum is σ = 3688156800. Its totient is φ = 434610176.

The previous prime is 1345816699. The next prime is 1345816763. The reversal of 1345816704 is 4076185431.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1345816704² = 3622445201530847232, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1810957 + ... + 1811699.

It is an arithmetic number, because the mean of its divisors is an integer number (28813725).

Almost surely, 2^1345816704 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 1345816704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1844078400).

1345816704 is an abundant number, since it is smaller than the sum of its proper divisors (2342340096).

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

1345816704 is an equidigital number, since it uses as much as digits as its factorization.

1345816704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902 (or 890 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 1345816704 is about 36685.3745244614. The cubic root of 1345816704 is about 1104.0666836428.

The spelling of 1345816704 in words is "one billion, three hundred forty-five million, eight hundred sixteen thousand, seven hundred four".