705531380 has 24 divisors (see below), whose sum is σ = 1482286848. Its totient is φ = 282084768.

The previous prime is 705531377. The next prime is 705531419. The reversal of 705531380 is 83135507.

705531380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46277 + ... + 59603.

It is an arithmetic number, because the mean of its divisors is an integer number (61761952).

Almost surely, 2^705531380 is an apocalyptic number.

It is an amenable number.

705531380 is an abundant number, since it is smaller than the sum of its proper divisors (776755468).

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

705531380 is a wasteful number, since it uses less digits than its factorization.

705531380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15983 (or 15981 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 705531380 is about 26561.8406741702. The cubic root of 705531380 is about 890.2365991341.

Adding to 705531380 its reverse (83135507), we get a palindrome (788666887).

The spelling of 705531380 in words is "seven hundred five million, five hundred thirty-one thousand, three hundred eighty".