704823840 has 288 divisors, whose sum is σ = 2806876800. Its totient is φ = 160989696.

The previous prime is 704823811. The next prime is 704823851. The reversal of 704823840 is 48328407.

It is a tau number, because it is divible by the number of its divisors (288).

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 = 704823795 and 704823804.

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, 493207 + ... + 494633.

It is an arithmetic number, because the mean of its divisors is an integer number (9746100).

Almost surely, 2^704823840 is an apocalyptic number.

704823840 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 704823840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1403438400).

704823840 is an abundant number, since it is smaller than the sum of its proper divisors (2102052960).

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

704823840 is a wasteful number, since it uses less digits than its factorization.

704823840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469 (or 1444 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 704823840 is about 26548.5186027394. The cubic root of 704823840 is about 889.9389092436.

The spelling of 704823840 in words is "seven hundred four million, eight hundred twenty-three thousand, eight hundred forty".