704322840 has 128 divisors (see below), whose sum is σ = 2307916800. Its totient is φ = 170903040.

The previous prime is 704322809. The next prime is 704322877. The reversal of 704322840 is 48223407.

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

It is a junction number, because it is equal to n+sod(n) for n = 704322798 and 704322807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107581 + ... + 113939.

It is an arithmetic number, because the mean of its divisors is an integer number (18030600).

Almost surely, 2^704322840 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 704322840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1153958400).

704322840 is an abundant number, since it is smaller than the sum of its proper divisors (1603593960).

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

704322840 is a wasteful number, since it uses less digits than its factorization.

704322840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6457 (or 6453 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 704322840 is about 26539.0813706880. The cubic root of 704322840 is about 889.7279983506.

The spelling of 704322840 in words is "seven hundred four million, three hundred twenty-two thousand, eight hundred forty".