231662242 has 16 divisors (see below), whose sum is σ = 406372032. Its totient is φ = 96974640.

The previous prime is 231662239. The next prime is 231662243. The reversal of 231662242 is 242266132.

It is a self number, because there is not a number n which added to its sum of digits gives 231662242.

It is not an unprimeable number, because it can be changed into a prime (231662243) 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, 191809 + ... + 193012.

It is an arithmetic number, because the mean of its divisors is an integer number (25398252).

Almost surely, 2^231662242 is an apocalyptic number.

231662242 is a deficient number, since it is larger than the sum of its proper divisors (174709790).

231662242 is a wasteful number, since it uses less digits than its factorization.

231662242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384873.

The product of its digits is 6912, while the sum is 28.

The square root of 231662242 is about 15220.4547238248. The cubic root of 231662242 is about 614.1650307769.

The spelling of 231662242 in words is "two hundred thirty-one million, six hundred sixty-two thousand, two hundred forty-two".