242963939 has 4 divisors (see below), whose sum is σ = 243007440. Its totient is φ = 242920440.

The previous prime is 242963933. The next prime is 242963953. The reversal of 242963939 is 939369242.

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

It is a cyclic number.

It is not a de Polignac number, because 242963939 - 2⁴ = 242963923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242963893 and 242963902.

It is not an unprimeable number, because it can be changed into a prime (242963933) 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, 11879 + ... + 25040.

It is an arithmetic number, because the mean of its divisors is an integer number (60751860).

Almost surely, 2^242963939 is an apocalyptic number.

242963939 is a deficient number, since it is larger than the sum of its proper divisors (43501).

242963939 is an equidigital number, since it uses as much as digits as its factorization.

242963939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43500.

The product of its digits is 629856, while the sum is 47.

The square root of 242963939 is about 15587.3005680907. The cubic root of 242963939 is about 623.9942771158.

The spelling of 242963939 in words is "two hundred forty-two million, nine hundred sixty-three thousand, nine hundred thirty-nine".