709482240 has 216 divisors, whose sum is σ = 2546766768. Its totient is φ = 189112320.

The previous prime is 709482239. The next prime is 709482247. The reversal of 709482240 is 42284907.

It is a tau number, because it is divible by the number of its divisors (216).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 709482195 and 709482204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (709482247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 309900 + ... + 312180.

Almost surely, 2^709482240 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 709482240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1273383384).

709482240 is an abundant number, since it is smaller than the sum of its proper divisors (1837284528).

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

709482240 is an equidigital number, since it uses as much as digits as its factorization.

709482240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2317 (or 2291 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 709482240 is about 26636.1078237794. The cubic root of 709482240 is about 891.8952332598.

The spelling of 709482240 in words is "seven hundred nine million, four hundred eighty-two thousand, two hundred forty".