705256830 has 48 divisors (see below), whose sum is σ = 1840863024. Its totient is φ = 187330560.

The previous prime is 705256823. The next prime is 705256861. The reversal of 705256830 is 38652507.

705256830 is a `hidden beast` number, since 70 + 525 + 68 + 3 + 0 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7885 + ... + 38375.

It is an arithmetic number, because the mean of its divisors is an integer number (38351313).

Almost surely, 2^705256830 is an apocalyptic number.

705256830 is an abundant number, since it is smaller than the sum of its proper divisors (1135606194).

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

705256830 is a wasteful number, since it uses less digits than its factorization.

705256830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30761 (or 30758 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 705256830 is about 26556.6720430102. The cubic root of 705256830 is about 890.1211087979.

The spelling of 705256830 in words is "seven hundred five million, two hundred fifty-six thousand, eight hundred thirty".