78681230 has 16 divisors (see below), whose sum is σ = 141953904. Its totient is φ = 31399680.

The previous prime is 78681227. The next prime is 78681247. The reversal of 78681230 is 3218687.

It is a super-4 number, since 4×78681230⁴ (a number of 33 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4451 + ... + 13310.

It is an arithmetic number, because the mean of its divisors is an integer number (8872119).

Almost surely, 2^78681230 is an apocalyptic number.

78681230 is a deficient number, since it is larger than the sum of its proper divisors (63272674).

78681230 is a wasteful number, since it uses less digits than its factorization.

78681230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18211.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 78681230 is about 8870.2440778143. The cubic root of 78681230 is about 428.5061376199.

The spelling of 78681230 in words is "seventy-eight million, six hundred eighty-one thousand, two hundred thirty".