673656442 has 8 divisors (see below), whose sum is σ = 1010643156. Its totient is φ = 336775392.

The previous prime is 673656439. The next prime is 673656481. The reversal of 673656442 is 244656376.

673656442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 653773761 + 19882681 = 25569^2 + 4459^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7873 + ... + 37540.

Almost surely, 2^673656442 is an apocalyptic number.

673656442 is a deficient number, since it is larger than the sum of its proper divisors (336986714).

673656442 is a wasteful number, since it uses less digits than its factorization.

673656442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52832.

The product of its digits is 725760, while the sum is 43.

The square root of 673656442 is about 25954.8924482457. The cubic root of 673656442 is about 876.6229219274.

The spelling of 673656442 in words is "six hundred seventy-three million, six hundred fifty-six thousand, four hundred forty-two".