705442 has 8 divisors (see below), whose sum is σ = 1086876. Its totient is φ = 343152.

The previous prime is 705437. The next prime is 705461. The reversal of 705442 is 244507.

It can be written as a sum of positive squares in 2 ways, for example, as 703921 + 1521 = 839^2 + 39^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

705442 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4693 + ... + 4840.

2⁷⁰⁵⁴⁴² is an apocalyptic number.

705442 is a deficient number, since it is larger than the sum of its proper divisors (381434).

705442 is a wasteful number, since it uses less digits than its factorization.

705442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9572.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 705442 is about 839.9059471155. The cubic root of 705442 is about 89.0199004441.

Adding to 705442 its reverse (244507), we get a palindrome (949949).

The spelling of 705442 in words is "seven hundred five thousand, four hundred forty-two".