243225042 has 64 divisors (see below), whose sum is σ = 525312000. Its totient is φ = 74850048.

The previous prime is 243225029. The next prime is 243225043. The reversal of 243225042 is 240522342.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (243225043) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1017559 + ... + 1017797.

It is an arithmetic number, because the mean of its divisors is an integer number (8208000).

Almost surely, 2^243225042 is an apocalyptic number.

243225042 is an abundant number, since it is smaller than the sum of its proper divisors (282086958).

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

243225042 is a wasteful number, since it uses less digits than its factorization.

243225042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 243225042 is about 15595.6738232114. The cubic root of 243225042 is about 624.2177237855.

Adding to 243225042 its reverse (240522342), we get a palindrome (483747384).

The spelling of 243225042 in words is "two hundred forty-three million, two hundred twenty-five thousand, forty-two".