239342421 has 8 divisors (see below), whose sum is σ = 319194720. Its totient is φ = 159525872.

The previous prime is 239342407. The next prime is 239342431. The reversal of 239342421 is 124243932.

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

It is a cyclic number.

It is not a de Polignac number, because 239342421 - 2¹⁴ = 239326037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239342431) 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, 21406 + ... + 30608.

It is an arithmetic number, because the mean of its divisors is an integer number (39899340).

Almost surely, 2^239342421 is an apocalyptic number.

It is an amenable number.

239342421 is a deficient number, since it is larger than the sum of its proper divisors (79852299).

239342421 is an equidigital number, since it uses as much as digits as its factorization.

239342421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17875.

The product of its digits is 10368, while the sum is 30.

The square root of 239342421 is about 15470.6955564383. The cubic root of 239342421 is about 620.8784123576.

The spelling of 239342421 in words is "two hundred thirty-nine million, three hundred forty-two thousand, four hundred twenty-one".