243320132 has 24 divisors (see below), whose sum is σ = 464933952. Its totient is φ = 110501600.

The previous prime is 243320131. The next prime is 243320141. The reversal of 243320132 is 231023342.

It is not an unprimeable number, because it can be changed into a prime (243320131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74657 + ... + 77847.

It is an arithmetic number, because the mean of its divisors is an integer number (19372248).

Almost surely, 2^243320132 is an apocalyptic number.

243320132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

243320132 is a deficient number, since it is larger than the sum of its proper divisors (221613820).

243320132 is a wasteful number, since it uses less digits than its factorization.

243320132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4939 (or 4937 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 243320132 is about 15598.7221271487. The cubic root of 243320132 is about 624.2990601606.

Adding to 243320132 its reverse (231023342), we get a palindrome (474343474).

The spelling of 243320132 in words is "two hundred forty-three million, three hundred twenty thousand, one hundred thirty-two".