243150442 has 16 divisors (see below), whose sum is σ = 380773800. Its totient is φ = 116303040.

The previous prime is 243150433. The next prime is 243150491. The reversal of 243150442 is 244051342.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 195692121 + 47458321 = 13989^2 + 6889^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12909 + ... + 25552.

Almost surely, 2^243150442 is an apocalyptic number.

243150442 is a deficient number, since it is larger than the sum of its proper divisors (137623358).

243150442 is a wasteful number, since it uses less digits than its factorization.

243150442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38601.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 243150442 is about 15593.2819508915. The cubic root of 243150442 is about 624.1538989377.

The spelling of 243150442 in words is "two hundred forty-three million, one hundred fifty thousand, four hundred forty-two".