674743642 has 8 divisors (see below), whose sum is σ = 1036801332. Its totient is φ = 329143200.

The previous prime is 674743579. The next prime is 674743649. The reversal of 674743642 is 246347476.

674743642 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 471367521 + 203376121 = 21711^2 + 14261^2 .

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

It is not an unprimeable number, because it can be changed into a prime (674743649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4114209 + ... + 4114372.

Almost surely, 2^674743642 is an apocalyptic number.

674743642 is a deficient number, since it is larger than the sum of its proper divisors (362057690).

674743642 is a wasteful number, since it uses less digits than its factorization.

674743642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8228624.

The product of its digits is 677376, while the sum is 43.

The square root of 674743642 is about 25975.8280330002. The cubic root of 674743642 is about 877.0942562408.

The spelling of 674743642 in words is "six hundred seventy-four million, seven hundred forty-three thousand, six hundred forty-two".