242421339 has 4 divisors (see below), whose sum is σ = 323228456. Its totient is φ = 161614224.

The previous prime is 242421329. The next prime is 242421359. The reversal of 242421339 is 933124242.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 242421339 - 2⁵ = 242421307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242421329) 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, 40403554 + ... + 40403559.

It is an arithmetic number, because the mean of its divisors is an integer number (80807114).

Almost surely, 2^242421339 is an apocalyptic number.

242421339 is a deficient number, since it is larger than the sum of its proper divisors (80807117).

242421339 is an equidigital number, since it uses as much as digits as its factorization.

242421339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80807116.

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

The square root of 242421339 is about 15569.8856450521. The cubic root of 242421339 is about 623.5294184845.

The spelling of 242421339 in words is "two hundred forty-two million, four hundred twenty-one thousand, three hundred thirty-nine".