230916978 has 12 divisors (see below), whose sum is σ = 500320158. Its totient is φ = 76972320.

The previous prime is 230916977. The next prime is 230916979. The reversal of 230916978 is 879619032.

230916978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (230916977) and next prime (230916979).

It can be written as a sum of positive squares in only one way, i.e., 122611329 + 108305649 = 11073^2 + 10407^2 .

It is not an unprimeable number, because it can be changed into a prime (230916971) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6414343 + ... + 6414378.

Almost surely, 2^230916978 is an apocalyptic number.

230916978 is an abundant number, since it is smaller than the sum of its proper divisors (269403180).

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

230916978 is a wasteful number, since it uses less digits than its factorization.

230916978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12828729 (or 12828726 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 230916978 is about 15195.9526848434. The cubic root of 230916978 is about 613.5057278335.

The spelling of 230916978 in words is "two hundred thirty million, nine hundred sixteen thousand, nine hundred seventy-eight".