705400842 has 16 divisors (see below), whose sum is σ = 1412413632. Its totient is φ = 234864960.

The previous prime is 705400841. The next prime is 705400909. The reversal of 705400842 is 248004507.

It is not an unprimeable number, because it can be changed into a prime (705400841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61438 + ... + 72009.

It is an arithmetic number, because the mean of its divisors is an integer number (88275852).

Almost surely, 2^705400842 is an apocalyptic number.

705400842 is an abundant number, since it is smaller than the sum of its proper divisors (707012790).

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

705400842 is a wasteful number, since it uses less digits than its factorization.

705400842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134333.

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 705400842 is about 26559.3833136238. The cubic root of 705400842 is about 890.1816916435.

The spelling of 705400842 in words is "seven hundred five million, four hundred thousand, eight hundred forty-two".