709378560 has 400 divisors, whose sum is σ = 2780661312. Its totient is φ = 171417600.

The previous prime is 709378517. The next prime is 709378561. The reversal of 709378560 is 65873907.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (709378561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2280805 + ... + 2281115.

Almost surely, 2^709378560 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 709378560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1390330656).

709378560 is an abundant number, since it is smaller than the sum of its proper divisors (2071282752).

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

709378560 is a wasteful number, since it uses less digits than its factorization.

709378560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 709378560 is about 26634.1615223757. The cubic root of 709378560 is about 891.8517855184.

It can be divided in two parts, 70937 and 8560, that added together give a palindrome (79497).

The spelling of 709378560 in words is "seven hundred nine million, three hundred seventy-eight thousand, five hundred sixty".