386631616 has 28 divisors (see below), whose sum is σ = 876826288. Its totient is φ = 165699072.

The previous prime is 386631613. The next prime is 386631631. The reversal of 386631616 is 616136683.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (386631613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431061 + ... + 431956.

Almost surely, 2^386631616 is an apocalyptic number.

It is an amenable number.

386631616 is an abundant number, since it is smaller than the sum of its proper divisors (490194672).

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

386631616 is an equidigital number, since it uses as much as digits as its factorization.

386631616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863036 (or 863026 counting only the distinct ones).

The product of its digits is 93312, while the sum is 40.

The square root of 386631616 is about 19662.9503381359. The cubic root of 386631616 is about 728.5048625367.

The spelling of 386631616 in words is "three hundred eighty-six million, six hundred thirty-one thousand, six hundred sixteen".