391394014 has 8 divisors (see below), whose sum is σ = 640462968. Its totient is φ = 177906360.

The previous prime is 391394011. The next prime is 391394057. The reversal of 391394014 is 410493193.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (391394011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8895297 + ... + 8895340.

It is an arithmetic number, because the mean of its divisors is an integer number (80057871).

Almost surely, 2^391394014 is an apocalyptic number.

391394014 is a deficient number, since it is larger than the sum of its proper divisors (249068954).

391394014 is a wasteful number, since it uses less digits than its factorization.

391394014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17790650.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 391394014 is about 19783.6804968135. The cubic root of 391394014 is about 731.4838236932.

The spelling of 391394014 in words is "three hundred ninety-one million, three hundred ninety-four thousand, fourteen".