239742273 has 8 divisors (see below), whose sum is σ = 319740736. Its totient is φ = 159786000.

The previous prime is 239742257. The next prime is 239742289. The reversal of 239742273 is 372247932.

It is an interprime number because it is at equal distance from previous prime (239742257) and next prime (239742289).

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

It is not a de Polignac number, because 239742273 - 2⁴ = 239742257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (239742473) 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, 6783 + ... + 22923.

It is an arithmetic number, because the mean of its divisors is an integer number (39967592).

Almost surely, 2^239742273 is an apocalyptic number.

It is an amenable number.

239742273 is a deficient number, since it is larger than the sum of its proper divisors (79998463).

239742273 is a wasteful number, since it uses less digits than its factorization.

239742273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21095.

The product of its digits is 127008, while the sum is 39.

The square root of 239742273 is about 15483.6130473478. The cubic root of 239742273 is about 621.2239721521.

The spelling of 239742273 in words is "two hundred thirty-nine million, seven hundred forty-two thousand, two hundred seventy-three".