704057640 has 256 divisors, whose sum is σ = 2514758400. Its totient is φ = 155443200.

The previous prime is 704057591. The next prime is 704057681. The reversal of 704057640 is 46750407.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1527010 + ... + 1527470.

It is an arithmetic number, because the mean of its divisors is an integer number (9823275).

Almost surely, 2^704057640 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 704057640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1257379200).

704057640 is an abundant number, since it is smaller than the sum of its proper divisors (1810700760).

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

704057640 is a wasteful number, since it uses less digits than its factorization.

704057640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588 (or 584 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 704057640 is about 26534.0844952299. The cubic root of 704057640 is about 889.6163140145.

The spelling of 704057640 in words is "seven hundred four million, fifty-seven thousand, six hundred forty".