391616016 has 60 divisors (see below), whose sum is σ = 1112022576. Its totient is φ = 118669760.

The previous prime is 391616003. The next prime is 391616023. The reversal of 391616016 is 610616193.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27906 + ... + 39521.

Almost surely, 2^391616016 is an apocalyptic number.

It is an amenable number.

391616016 is an abundant number, since it is smaller than the sum of its proper divisors (720406560).

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

391616016 is a wasteful number, since it uses less digits than its factorization.

391616016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67460 (or 67443 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 391616016 is about 19789.2904370015. The cubic root of 391616016 is about 731.6220988265.

The spelling of 391616016 in words is "three hundred ninety-one million, six hundred sixteen thousand, sixteen".