704042 has 4 divisors (see below), whose sum is σ = 1056066. Its totient is φ = 352020.

The previous prime is 704029. The next prime is 704059. The reversal of 704042 is 240407.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240407 = 19 ⋅12653.

It can be written as a sum of positive squares in only one way, i.e., 703921 + 121 = 839^2 + 11^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 704042.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176009 + ... + 176012.

2⁷⁰⁴⁰⁴² is an apocalyptic number.

704042 is a deficient number, since it is larger than the sum of its proper divisors (352024).

704042 is a wasteful number, since it uses less digits than its factorization.

704042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352023.

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 704042 is about 839.0721065558. The cubic root of 704042 is about 88.9609726627.

Adding to 704042 its reverse (240407), we get a palindrome (944449).

The spelling of 704042 in words is "seven hundred four thousand, forty-two", and thus it is an iban number.