386812203990 has 32 divisors (see below), whose sum is σ = 930619121760. Its totient is φ = 102897717504.

The previous prime is 386812203983. The next prime is 386812204013. The reversal of 386812203990 is 99302218683.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15750249 + ... + 15774788.

It is an arithmetic number, because the mean of its divisors is an integer number (29081847555).

Almost surely, 2^386812203990 is an apocalyptic number.

386812203990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

386812203990 is an abundant number, since it is smaller than the sum of its proper divisors (543806917770).

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

386812203990 is a wasteful number, since it uses less digits than its factorization.

386812203990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31525456.

The product of its (nonzero) digits is 1119744, while the sum is 51.

The spelling of 386812203990 in words is "three hundred eighty-six billion, eight hundred twelve million, two hundred three thousand, nine hundred ninety".