1245208704 has 128 divisors (see below), whose sum is σ = 3418632000. Its totient is φ = 401326080.

The previous prime is 1245208703. The next prime is 1245208709. The reversal of 1245208704 is 4078025421.

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

It is not an unprimeable number, because it can be changed into a prime (1245208703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2188132 + ... + 2188700.

Almost surely, 2^1245208704 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 1245208704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1709316000).

1245208704 is an abundant number, since it is smaller than the sum of its proper divisors (2173423296).

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

1245208704 is a wasteful number, since it uses less digits than its factorization.

1245208704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766 (or 754 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 1245208704 is about 35287.5148459055. The cubic root of 1245208704 is about 1075.8392448353.

The spelling of 1245208704 in words is "one billion, two hundred forty-five million, two hundred eight thousand, seven hundred four".