705140370 has 128 divisors (see below), whose sum is σ = 2067482880. Its totient is φ = 169597440.

The previous prime is 705140363. The next prime is 705140411. The reversal of 705140370 is 73041507.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon 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 63 ways as a sum of consecutive naturals, for example, 406024 + ... + 407756.

It is an arithmetic number, because the mean of its divisors is an integer number (16152210).

Almost surely, 2^705140370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 705140370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1033741440).

705140370 is an abundant number, since it is smaller than the sum of its proper divisors (1362342510).

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

705140370 is a wasteful number, since it uses less digits than its factorization.

705140370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897 (or 1891 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 705140370 is about 26554.4792831643. The cubic root of 705140370 is about 890.0721104725.

Adding to 705140370 its reverse (73041507), we get a palindrome (778181877).

The spelling of 705140370 in words is "seven hundred five million, one hundred forty thousand, three hundred seventy".