230778634 has 4 divisors (see below), whose sum is σ = 346167954. Its totient is φ = 115389316.

The previous prime is 230778631. The next prime is 230778641. The reversal of 230778634 is 436877032.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 147695409 + 83083225 = 12153^2 + 9115^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (230778631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57694657 + ... + 57694660.

Almost surely, 2^230778634 is an apocalyptic number.

230778634 is a deficient number, since it is larger than the sum of its proper divisors (115389320).

230778634 is a wasteful number, since it uses less digits than its factorization.

230778634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115389319.

The product of its (nonzero) digits is 169344, while the sum is 40.

The square root of 230778634 is about 15191.4000013165. The cubic root of 230778634 is about 613.3831848132.

The spelling of 230778634 in words is "two hundred thirty million, seven hundred seventy-eight thousand, six hundred thirty-four".