709402080 has 96 divisors (see below), whose sum is σ = 2248573824. Its totient is φ = 187992576.

The previous prime is 709402039. The next prime is 709402081. The reversal of 709402080 is 80204907.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×709402080² = 1006502622216652800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (709402081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73707 + ... + 82773.

It is an arithmetic number, because the mean of its divisors is an integer number (23422644).

Almost surely, 2^709402080 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 709402080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1124286912).

709402080 is an abundant number, since it is smaller than the sum of its proper divisors (1539171744).

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

709402080 is a wasteful number, since it uses less digits than its factorization.

709402080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9248 (or 9240 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 709402080 is about 26634.6030569258. The cubic root of 709402080 is about 891.8616420902.

Adding to 709402080 its reverse (80204907), we get a palindrome (789606987).

The spelling of 709402080 in words is "seven hundred nine million, four hundred two thousand, eighty".