230640442 has 8 divisors (see below), whose sum is σ = 346025376. Its totient is φ = 115298652.

The previous prime is 230640439. The next prime is 230640461. The reversal of 230640442 is 244046032.

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, 13683 + ... + 25465.

It is an arithmetic number, because the mean of its divisors is an integer number (43253172).

Almost surely, 2^230640442 is an apocalyptic number.

230640442 is a deficient number, since it is larger than the sum of its proper divisors (115384934).

230640442 is a wasteful number, since it uses less digits than its factorization.

230640442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21572.

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

The square root of 230640442 is about 15186.8509573249. The cubic root of 230640442 is about 613.2607275296.

Adding to 230640442 its reverse (244046032), we get a palindrome (474686474).

The spelling of 230640442 in words is "two hundred thirty million, six hundred forty thousand, four hundred forty-two".