239720542 has 8 divisors (see below), whose sum is σ = 360165456. Its totient is φ = 119665392.

The previous prime is 239720497. The next prime is 239720543. The reversal of 239720542 is 245027932.

It is a happy number.

239720542 is digitally balanced in base 3, 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 a junction number, because it is equal to n+sod(n) for n = 239720498 and 239720507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239720543) 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, 95898 + ... + 98365.

It is an arithmetic number, because the mean of its divisors is an integer number (45020682).

Almost surely, 2^239720542 is an apocalyptic number.

239720542 is a deficient number, since it is larger than the sum of its proper divisors (120444914).

239720542 is a wasteful number, since it uses less digits than its factorization.

239720542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194882.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 239720542 is about 15482.9112895476. The cubic root of 239720542 is about 621.2052016812.

The spelling of 239720542 in words is "two hundred thirty-nine million, seven hundred twenty thousand, five hundred forty-two".