814140668 has 24 divisors (see below), whose sum is σ = 1559357184. Its totient is φ = 368852400.

The previous prime is 814140667. The next prime is 814140697. The reversal of 814140668 is 866041418.

814140668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (814140661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16628 + ... + 43643.

It is an arithmetic number, because the mean of its divisors is an integer number (64973216).

Almost surely, 2^814140668 is an apocalyptic number.

It is an amenable number.

814140668 is a deficient number, since it is larger than the sum of its proper divisors (745216516).

814140668 is a wasteful number, since it uses less digits than its factorization.

814140668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60593 (or 60591 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 814140668 is about 28533.1503343041. The cubic root of 814140668 is about 933.7554501610.

The spelling of 814140668 in words is "eight hundred fourteen million, one hundred forty thousand, six hundred sixty-eight".