243231402 has 16 divisors (see below), whose sum is σ = 487596672. Its totient is φ = 80888160.

The previous prime is 243231397. The next prime is 243231409. The reversal of 243231402 is 204132342.

It is not an unprimeable number, because it can be changed into a prime (243231409) 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, 44443 + ... + 49614.

It is an arithmetic number, because the mean of its divisors is an integer number (30474792).

Almost surely, 2^243231402 is an apocalyptic number.

243231402 is an abundant number, since it is smaller than the sum of its proper divisors (244365270).

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

243231402 is a wasteful number, since it uses less digits than its factorization.

243231402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94493.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 243231402 is about 15595.8777245784. The cubic root of 243231402 is about 624.2231645494.

Adding to 243231402 its reverse (204132342), we get a palindrome (447363744).

The spelling of 243231402 in words is "two hundred forty-three million, two hundred thirty-one thousand, four hundred two".