709331040 has 576 divisors, whose sum is σ = 2895782400. Its totient is φ = 161694720.

The previous prime is 709331023. The next prime is 709331041. The reversal of 709331040 is 40133907.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 709330995 and 709331013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (709331041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12022531 + ... + 12022589.

It is an arithmetic number, because the mean of its divisors is an integer number (5027400).

Almost surely, 2^709331040 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 709331040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1447891200).

709331040 is an abundant number, since it is smaller than the sum of its proper divisors (2186451360).

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

709331040 is a wasteful number, since it uses less digits than its factorization.

709331040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 709331040 is about 26633.2694200318. The cubic root of 709331040 is about 891.8318705555.

Adding to 709331040 its reverse (40133907), we get a palindrome (749464947).

The spelling of 709331040 in words is "seven hundred nine million, three hundred thirty-one thousand, forty".