242311858 has 4 divisors (see below), whose sum is σ = 363467790. Its totient is φ = 121155928.

The previous prime is 242311847. The next prime is 242311859. The reversal of 242311858 is 858113242.

It is a happy number.

242311858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 192848769 + 49463089 = 13887^2 + 7033^2 .

It is not an unprimeable number, because it can be changed into a prime (242311859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60577963 + ... + 60577966.

Almost surely, 2^242311858 is an apocalyptic number.

242311858 is a deficient number, since it is larger than the sum of its proper divisors (121155932).

242311858 is a wasteful number, since it uses less digits than its factorization.

242311858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121155931.

The product of its digits is 15360, while the sum is 34.

The square root of 242311858 is about 15566.3694546930. The cubic root of 242311858 is about 623.4355393682.

The spelling of 242311858 in words is "two hundred forty-two million, three hundred eleven thousand, eight hundred fifty-eight".