742105623 has 8 divisors (see below), whose sum is σ = 1130827648. Its totient is φ = 424060344.

The previous prime is 742105619. The next prime is 742105631. The reversal of 742105623 is 326501247.

742105623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 742105623 - 2² = 742105619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742105423) 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, 17669161 + ... + 17669202.

It is an arithmetic number, because the mean of its divisors is an integer number (141353456).

Almost surely, 2^742105623 is an apocalyptic number.

742105623 is a deficient number, since it is larger than the sum of its proper divisors (388722025).

742105623 is a wasteful number, since it uses less digits than its factorization.

742105623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35338373.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 742105623 is about 27241.6156459194. The cubic root of 742105623 is about 905.3612602875.

The spelling of 742105623 in words is "seven hundred forty-two million, one hundred five thousand, six hundred twenty-three".