242392739 has 8 divisors (see below), whose sum is σ = 243906960. Its totient is φ = 240883200.

The previous prime is 242392729. The next prime is 242392741. The reversal of 242392739 is 937293242.

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 242392739 - 2⁸ = 242392483 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242392696 and 242392705.

It is not an unprimeable number, because it can be changed into a prime (242392729) 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, 177419 + ... + 178779.

It is an arithmetic number, because the mean of its divisors is an integer number (30488370).

Almost surely, 2^242392739 is an apocalyptic number.

242392739 is a deficient number, since it is larger than the sum of its proper divisors (1514221).

242392739 is a wasteful number, since it uses less digits than its factorization.

242392739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341.

The product of its digits is 163296, while the sum is 41.

The square root of 242392739 is about 15568.9671783327. The cubic root of 242392739 is about 623.5048969321.

The spelling of 242392739 in words is "two hundred forty-two million, three hundred ninety-two thousand, seven hundred thirty-nine".