173720742 has 32 divisors (see below), whose sum is σ = 382136832. Its totient is φ = 52314144.

The previous prime is 173720719. The next prime is 173720777. The reversal of 173720742 is 247027371.

173720742 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20028 + ... + 27359.

It is an arithmetic number, because the mean of its divisors is an integer number (11941776).

Almost surely, 2^173720742 is an apocalyptic number.

173720742 is an abundant number, since it is smaller than the sum of its proper divisors (208416090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

173720742 is a wasteful number, since it uses less digits than its factorization.

173720742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47452.

The product of its (nonzero) digits is 16464, while the sum is 33.

The square root of 173720742 is about 13180.3164605407. The cubic root of 173720742 is about 557.9781918739.

The spelling of 173720742 in words is "one hundred seventy-three million, seven hundred twenty thousand, seven hundred forty-two".