704220 has 72 divisors (see below), whose sum is σ = 2189712. Its totient is φ = 168960.

The previous prime is 704219. The next prime is 704233. The reversal of 704220 is 22407.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a nialpdrome in base 11.

It is a zygodrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 704220.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 7212 + ... + 7308.

2⁷⁰⁴²²⁰ 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 704220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1094856).

704220 is an abundant number, since it is smaller than the sum of its proper divisors (1485492).

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

704220 is a wasteful number, since it uses less digits than its factorization.

704220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 704220 is about 839.1781694015. The cubic root of 704220 is about 88.9684692414.

Adding to 704220 its reverse (22407), we get a palindrome (726627).

The spelling of 704220 in words is "seven hundred four thousand, two hundred twenty", and thus it is an iban number.