243034330 has 64 divisors (see below), whose sum is σ = 569161728. Its totient is φ = 72452160.

The previous prime is 243034313. The next prime is 243034331. The reversal of 243034330 is 33430342.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (243034331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10849 + ... + 24571.

It is an arithmetic number, because the mean of its divisors is an integer number (8893152).

Almost surely, 2^243034330 is an apocalyptic number.

243034330 is an abundant number, since it is smaller than the sum of its proper divisors (326127398).

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

243034330 is a wasteful number, since it uses less digits than its factorization.

243034330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13771.

The product of its (nonzero) digits is 2592, while the sum is 22.

The square root of 243034330 is about 15589.5583644951. The cubic root of 243034330 is about 624.0545320658.

Adding to 243034330 its reverse (33430342), we get a palindrome (276464672).

The spelling of 243034330 in words is "two hundred forty-three million, thirty-four thousand, three hundred thirty".