231342442 has 8 divisors (see below), whose sum is σ = 365277600. Its totient is φ = 109583244.

The previous prime is 231342437. The next prime is 231342457. The reversal of 231342442 is 244243132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3043942 + ... + 3044017.

It is an arithmetic number, because the mean of its divisors is an integer number (45659700).

Almost surely, 2^231342442 is an apocalyptic number.

231342442 is a deficient number, since it is larger than the sum of its proper divisors (133935158).

231342442 is a wasteful number, since it uses less digits than its factorization.

231342442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6087980.

The product of its digits is 4608, while the sum is 25.

The square root of 231342442 is about 15209.9454962863. The cubic root of 231342442 is about 613.8822909526.

Adding to 231342442 its reverse (244243132), we get a palindrome (475585574).

The spelling of 231342442 in words is "two hundred thirty-one million, three hundred forty-two thousand, four hundred forty-two".