243122442 has 16 divisors (see below), whose sum is σ = 511836960. Its totient is φ = 76775472.

The previous prime is 243122413. The next prime is 243122471. The reversal of 243122442 is 244221342.

243122442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (243122413) and next prime (243122471).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1066213 + ... + 1066440.

It is an arithmetic number, because the mean of its divisors is an integer number (31989810).

Almost surely, 2^243122442 is an apocalyptic number.

243122442 is an abundant number, since it is smaller than the sum of its proper divisors (268714518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243122442 is a wasteful number, since it uses less digits than its factorization.

243122442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132677.

The product of its digits is 3072, while the sum is 24.

The square root of 243122442 is about 15592.3841025034. The cubic root of 243122442 is about 624.1299398613.

Adding to 243122442 its reverse (244221342), we get a palindrome (487343784).

The spelling of 243122442 in words is "two hundred forty-three million, one hundred twenty-two thousand, four hundred forty-two".