704340 has 144 divisors (see below), whose sum is σ = 2690688. Its totient is φ = 145152.

The previous prime is 704321. The next prime is 704357. The reversal of 704340 is 43407.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 15.

It is a zygodrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16359 + ... + 16401.

2⁷⁰⁴³⁴⁰ is an apocalyptic number.

704340 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

704340 is the 420-th decagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 704340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1345344).

704340 is an abundant number, since it is smaller than the sum of its proper divisors (1986348).

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

704340 is a wasteful number, since it uses less digits than its factorization.

704340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 704340 is about 839.2496648793. The cubic root of 704340 is about 88.9735224018.

Adding to 704340 its reverse (43407), we get a palindrome (747747).

The spelling of 704340 in words is "seven hundred four thousand, three hundred forty", and thus it is an iban number.