386812650 has 96 divisors (see below), whose sum is σ = 1104750720. Its totient is φ = 87736320.

The previous prime is 386812633. The next prime is 386812669. The reversal of 386812650 is 56218683.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 386812599 and 386812608.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 142506 + ... + 145194.

It is an arithmetic number, because the mean of its divisors is an integer number (11507820).

Almost surely, 2^386812650 is an apocalyptic number.

386812650 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 386812650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (552375360).

386812650 is an abundant number, since it is smaller than the sum of its proper divisors (717938070).

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

386812650 is a wasteful number, since it uses less digits than its factorization.

386812650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2848 (or 2843 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 386812650 is about 19667.5532286047. The cubic root of 386812650 is about 728.6185483338.

The spelling of 386812650 in words is "three hundred eighty-six million, eight hundred twelve thousand, six hundred fifty".