704321280 has 216 divisors, whose sum is σ = 2624888448. Its totient is φ = 173334528.

The previous prime is 704321263. The next prime is 704321281. The reversal of 704321280 is 82123407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (704321281) 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, 147409 + ... + 152111.

Almost surely, 2^704321280 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 704321280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1312444224).

704321280 is an abundant number, since it is smaller than the sum of its proper divisors (1920567168).

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

704321280 is a wasteful number, since it uses less digits than its factorization.

704321280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4743 (or 4726 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 704321280 is about 26539.0519800538. The cubic root of 704321280 is about 889.7273414659.

Adding to 704321280 its reverse (82123407), we get a palindrome (786444687).

The spelling of 704321280 in words is "seven hundred four million, three hundred twenty-one thousand, two hundred eighty".