386490 has 32 divisors (see below), whose sum is σ = 999936. Its totient is φ = 95040.

The previous prime is 386489. The next prime is 386501. The reversal of 386490 is 94683.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 386490.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106 + ... + 885.

It is an arithmetic number, because the mean of its divisors is an integer number (31248).

2³⁸⁶⁴⁹⁰ is an apocalyptic number.

386490 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 386490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (499968).

386490 is an abundant number, since it is smaller than the sum of its proper divisors (613446).

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

386490 is a wasteful number, since it uses less digits than its factorization.

386490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 386490 is about 621.6831990652. The cubic root of 386490 is about 72.8415905729.

The spelling of 386490 in words is "three hundred eighty-six thousand, four hundred ninety".