386550 has 36 divisors (see below), whose sum is σ = 1039740. Its totient is φ = 102960.

The previous prime is 386549. The next prime is 386569. The reversal of 386550 is 55683.

386550 is a `hidden beast` number, since 3 + 8 + 655 + 0 = 666.

It is a plaindrome in base 11.

It is a nialpdrome in base 5.

It is a zygodrome in base 5.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 21 + ... + 879.

2³⁸⁶⁵⁵⁰ is an apocalyptic number.

386550 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 386550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (519870).

386550 is an abundant number, since it is smaller than the sum of its proper divisors (653190).

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

386550 is a wasteful number, since it uses less digits than its factorization.

386550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877 (or 869 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 386550 is about 621.7314532819. The cubic root of 386550 is about 72.8453597685.

The spelling of 386550 in words is "three hundred eighty-six thousand, five hundred fifty".