1345564672 has 52 divisors (see below), whose sum is σ = 2777862976. Its totient is φ = 651018240.

The previous prime is 1345564663. The next prime is 1345564711. The reversal of 1345564672 is 2764655431.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121678 + ... + 132274.

Almost surely, 2^1345564672 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 1345564672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1388931488).

1345564672 is an abundant number, since it is smaller than the sum of its proper divisors (1432298304).

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

1345564672 is an equidigital number, since it uses as much as digits as its factorization.

1345564672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10652 (or 10630 counting only the distinct ones).

The product of its digits is 604800, while the sum is 43.

The square root of 1345564672 is about 36681.9393162357. The cubic root of 1345564672 is about 1103.9977595698.

The spelling of 1345564672 in words is "one billion, three hundred forty-five million, five hundred sixty-four thousand, six hundred seventy-two".